4-20mA > DPMs

Otek offers a wide variety of Bargraph Indicators and Digital Panel Meters that accept a 4-20mA current loop input. These can be both loop/signal powered displays with serial I/O or externally powered with the same functionality as a loop powered model but with control features such as relays and DAC output. Most models have built in linearization tables and polynomials as to be able to accurately display even a non-linear input like thermocouples and RTDs.

A wide selection of industry standard sizes are available along with the ability to custom manufacture an instrument that will meet any of your standards whether it be size, MIL-SPEC, EPRI-102323, Environmental, etc.

OTEK's 1PM is our smallest LED Digital Panel Meter (and Loop Powered). The unit is only 1" x 1.3", with 0.33" LEDs.

OTEK brings you the World's smallest LED Digital Panel Meter (and Loop Powered). That is why we call it the 1PM!  The size does not affect its reliability, performance and accuracy and we even managed to add the over-range indicator above the MSD so you know you have exceeded the full scale range. We added the negative sign indicator ("-") below the MSD so you know your signal is negative. You can adjust the Zero & span (+30% range) via 12 turn potentiometers on the rear and connections are made via standard 0.1" center headers for P.C.B. or panel mount. For panel mount, a polarized ? lter is available on request. The 1PM is a typical example of OTEK's Custom and Semi-Custom capabilities. If it can be done, we can do it!

OTEK's Model  APM  is a four (4) digit green , red or blue LED indicator that accepts standard avionics power of 5-32VDC (Green, Red or Blue digits) and intensity control voltage of 1.5 - 5V 50-440Hz (or DC/Resistance). OTEK's exclusive powerless technique allows the APM to be loop powered causing a maximum of 5VDC burden to the loop.  The APM only requires 2 wires to operate.
 
The heart of the APM is an ASIC that accepts VDC or mADC and can be scaled (internally) to any value. The unit mounts in a standard avionics 1" diameter hole with four (4) mounting screws and connects to Power and signal via a "Twist Lock" circular connector (DBC53H-10-6P, Mating Cable End: MS347640 (L or M) -6S).
 
The APM is fully sealed and it is not affected by differential pressure, liquid spray (NEMA4X) or humidity (See Specs.).
 
APPLICABLE MIL-SPECS:
MIL-STD-461D, 462D, 704E, 130K, 810F, 889B2 & 1472F; MIL-HDBK-217F & 454A, RTCA-160F.

THIS PRODUCT SCHEDULED FOR DISCONTINUATION BASED ON THE AVAILABILITY OF PARTS. CLICK HERE FOR DETAILS OR SEE MODEL NTM-0 (horizontal 1/8 DIN) or NTM-B (vertical 1/8 DIN) AS REPLACEMENTS.

OTEK's BDM (1.88"W x 3.75"H x 2.70"D) is an 1/8 Din Bar-Digital Meter/Controller with automatic tricolor bargraph!

We shrunk the EBD!  By popular demand, we took our popular EBD (6x1.7x2") and made it fit in the industry's most popular panel meter size 1/8 DIN (3.6x1.6x2"), and kept all the outstanding features.  This is a reduction of almost 50% in size and price, but not in performance and quality!  The new BDM is ready for your DCS, SCADA or stand alone application with its autotricolor bargraph (popularized by OTEK in the nuclear and military industries) for best HMI (just like traffic lights).

GRADES: 3 grades are available: Hi-Rel Industrial (see specs.), Mil-Spec to specific standards, Nuclear to 10CFR50-B and to your requirements. Contact OTEK for availability.

SIGNAL CONDITIONERS:  20+ input signal conditioners are available (more soon).  See ordering information and description sections. 

ZERO AND SPAN: Either manual or via serial port. 

MATH FUNCTIONS: RTD, TC & X-Y linearization plus Tare, Offset, Scale, Peak and more are programmable via simple commands.
 
CONTROL OUTPUTS: 4 each relays or 4 open collector transistors for High, High-High, Low and Low-Low Control.

THIS PRODUCT SCHEDULED FOR DISCONTINUATION BASED ON THE AVAILABILITY OF PARTS.  CLICK HERE FOR DETAILS OR SEE MODEL NTM-D AS A REPLACEMENT

OTEK's DCS (3.26"W x 3.26"H x 1.69"D) is designed to replace our old 590 series meter as well the popular 3.5 barrel analog meters.

By popular demand we bring back the old "590" but with New Patented Technology so you can replace the old needle, fragile and inaccurate 19th Century Technology analog meters without changing your panel or wiring. Signal Powered: 4-20mA current loop and 4-30VDC, VAC, AAC, WAC & Hz-ideal for power line monitoring. Externally Powered: V & mADC, V & mA RMS, TC, RTD, Frequency (40-20KHz), pH (0-14), %RH, and customs. The external power options cover the entire industrial range of 5-32 VDC and 90-265VAC. Zero and Span adjustments (12 Turn Pots) are conveniently located on the front. Signal Conditioners:  20+ signal conditioners are available (see description) for Powerless™(Signal Powered) or externally powered applications.The DCS performs a self-test (C.O.P.) on power up for approximately 2 seconds.

THIS PRODUCT SCHEDULED FOR DISCONTINUATION BASED ON THE AVAILABILITY OF PARTS. CLICK HERE FOR DETAILS OR SEE MODEL NTM-F AS A REPLACEMENT.

Our New FPM (3.04"W x 2.04"H) series is a 4 1/2 digit flat pack meter which requires no panel cutout! 

Our New FPM Series is the 2nd generation of our famous "No Panel Cut-Out Required" meters introduced in 1976! The FPM uses ASIC and Nanotechnology to bring you a universal meter for all your applications (See Ordering Information For Listing of Input Functions). Mounting: Just drill a 3/8" (10mm) hole, pass the wires through it and connect them, that's all! Display: Bright 0.6" LED in red or green. Power Supply: Not needed for current loops or VDC signal inputs. That is why we call it PowerlessTM (5VDC for other input signals). Signal Inputs: Signal Powered: 4-20, 10-50mA or 3-30VDC. Externally Powered (5VDC): V/mA DC & RMS, Strain-Gage, RTD, TC, Hertz, %RH, pH, ORP, Peak & Hold or your custom inputs! Peak & Hold: The FPM has Peak & Hold with about 300us(3/sec) response. For high speed (>20KHz) see Option 37 Description.

 

 

The HI-Q 126 is part of Otek’s line of versatile programmable process controllers that are extremely adaptable and can be customized or programmed to fit a variety of process control systems and applications. This switchboard panel display features three 6-digit displays and 8 different alarm state indicator lights. Each display has the capability to be configured for range-based color control as well as display blinking and dimming. All displays and alarms are independent of each other but can be configured for a number of different scenarios and combinations. The HI-Q 126 is highly programmable and capable of displaying a large number of variables and scales, including watts, volts, amps, RPM, percent, or any sensor output such as a 4 to 20 mA output. Input linearization including polynomials, X-Y tables (TC & RTD), flow calculations, and a variety of other mathematical functions make this digital meter an ideal tool for process monitoring and automation. It is available with 1, 2 or 3 analog inputs, and with analog outputs, up to six 10 A relays or up to eight Open Collector Transistors. All settings are accessible over the meter’s serial port or through an optimal four-button keypad on the display face. Its ability to transmit readings makes this digital panel instrument ideal for integration with DCS, SCADA and other control system applications. This digital display is fitted with screw terminal connectors for all analog I/O, a DB-9 connector for the serial connection option and is compatible with USB 2.0 via a converter (USB Transceiver). The HI-Q126 process display is HMI/MMI qualified and compliant with many military, nuclear, and aerospace requirements.

Otek specializes in customizing instrumentation for process control and automation to fit a variety of needs. For more information please contact us. All of Otek’s products are covered by a lifetime warranty.

Sanitary Casing: Water tight and steam resistant up to 250° F. High Temperature/Impact window. Submersible and water tight.

Explosion Proof Casing: This meter meets Class I, Div 1 &2 groups B, C, and D; Class II, Div 1 & 2 groups E, F, and G; Class III, NEMA 3,4, 7, 9, and 12; FMC, CSA Cenelee and Baseefa requirements. Casted aluminum housing.

 

 

 

HI-QDPM

The HI-QDPM is a low cost meter similar to the HI-QCPM but with added functionality and control. It is part of Otek’s line of versatile panel instruments and features a 5-digit LED display with a menu driven keypad, providing a great solution for a wide range of process control and monitoring needs.

By simple front panel push-button setup, one meter with a DC signal conditioner can be programmed to display a large number of variables and scales, including watts, volts, amps, RPM, percent, DC voltage, current, strain gauges or process signals.  The temperature signal conditioner allows the user to select between 6 popular thermocouples or 2 RTD types.  Color options for the LED display include red or green with more available upon request. This meter also includes two alarm set points that are programmable via the four button panel. Input linearization including polynomials, X-Y tables (TC & RTD), flow calculations, and a variety of other mathematical functions make this digital meter an ideal tool for process monitoring and automation. The voltage-to-frequency input signal conditioner converts the meter to an integrating totalizer or rate meter for voltage or current inputs.  Outputs may be scaled to display different variable and scales including watts and total kilowatt hours, flow and total flow.  Custom curves may be programmed in the meter for accurately measuring nonlinear frequency or voltage inputs. Plug-in signal conditioners for AC (True RMS) voltage and current or low level load cells are available. 

 The HI-QDPM makes 60 readings per second (50 for 50Hz operation) for fast control response, true peak reading capability and an analog output that accurately tracks the signal input.  The meter has an adaptive digital filter that can automatically select the best time constant for minimum noise, but yet responds rapidly to an actual change in signal level.  The peak value of the input signal can be displayed by a push of a button on the front panel.  Auto tare allows the meter display to be set to zero for any input signal level. Transistors or dual 10 amp relays may be added to provide control outputs with the set points programmed by front panel pushbuttons. Its ability to transmit readings makes this digital panel meter ideal for integration with DCS, SCADA and other control system applications. This digital meter has options for 0 to 10V and 0-20mA analog to drive chart recorders, remote displays or for transmission to a central control room.  

Otek specializes in customizing instrumentation for process control and automation to fit a variety of needs. For more information please contact us. All of Otek’s products are covered by a lifetime warranty.

 

THIS PRODUCT SCHEDULED FOR DISCONTINUATION BASED ON THE AVAILABILITY OF PARTS.  CLICK HERE FOR DETAILS OR SEE MODEL NTM-L AS A REPLACEMENT.

OTEK's LPE (2.91"W x 1.52"H x 2.252"D) is a loop powered panel meter, with super high efficiency 0.56" LED 4 1/2 display and over 30 signal input options!

Another World's First By OTEK! To complement it's world's ? rst LCD (Model LPM) Loop Powered Meter, OTEK developed the exact counter part of it but with super high ef?ciency 0.56" LED display, RS232E and all Loop Powered! 

Several Con?gurations are Available:

1. Loop Powered: Just connect 2 wires (+ & - Loop)
2. Loop Powered with RS232E: Just connect 5 wires
3. USB, 5, 12, 24 or 48VDC Input Power: Just connect 4 wires
4. 90-265VAC Input Power: Just connect 4 wires
5. Power for Transmitter: Just connect 4 wires
6. Serial In Remote Display: Just connect 3 wires 
 
The Connector: Seismic Quali? ed Captive & Plug-In
The Housing: Aluminum Nickel Plated or Plastic, Seismic Qualified. Optional Sanitary housing available.
Adjustments: Front panel adjustments, or via Serial Port.
The Serial I/O: (Optional): RS232E for Loop Powered RS232D, 485 or USB for external power.
 
The Grades:
a. Intrinsically Safe (IS) by design, for CLI, Div. 1 & 2.
b. Mil-Specs: To Your Requirements.
c. Nuclear: 10CFR1050B
d. Industrial: -10 + 700C, 5-95% RH
 
The Technology:  ASIC Nanotechnology for greater reliability

OTEK's LPL (1.73"W x 0.945"H x 0.765"D) ultra small loop or external powered 4 1/2 digit panel meter.

OTEK's  LPL brings you over 30 years of expertise in Loop Powered Meters (we invented it) and its known reliability backed by OTEK's exclusive Lifetime Warranty! You can mount the LPL on a panel, P.C.B. or your own housing. The 12 turn potentiometers for  Zero and Span give you smooth and wide range calibration. You can select from current or voltage signal power or 5VDC power and mounting (P.C.B. or Panel). There is no other more fexible Digital Panel Meter in the market.

THIS PRODUCT SCHEDULED FOR DISCONTINUATION BASED ON THE AVAILABILITY OF PARTS.  CLICK HERE FOR DETAILS OR SEE MODEL NTM-X AS A REPLACEMENT.

OTEK's LPX (4.3"W x 3.9"H x 3.7"D) is a loop or externally powered explosion proof housed digital 4 1/2 display meter with serial I/O.

The World's Largest Loop Powered Instrument Manufacturer since 1974 brings you its Model  LPX which is a variation of the World's First Loop Powered Meter with Serial I/O, the LPM and LPE. The LPX has several added features such as Industry Standard I.R.D.A. communications (I/O) that eliminates the need to stop the hazardous process to re-scale or calibrate the meter.  Serial I/O via RS232, 485 or USB to give you on-site data via wires. Provisions for Signal Conditioners to convert T.C., RTD, S-G, etc. at your request. The compact E.P. housing is the smallest in the market, yet it is fully Class I, Div. 1 & 2 Certified with 3 NPT ports and the display can be rotated 90 degrees inside the case!

 THIS PRODUCT SCHEDULED FOR DISCONTINUATION BASED ON THE AVAILABILITY OF PARTS.  CLICK HERE FOR DETAILS OR SEE MODEL NTM-0 (horizontal 1/8 DIN) or NTM-B (vertical 1/8 DIN) AS REPLACEMENTS.

OTEK's SPM (3.78"W x 1.90"H x 2.70"D) is a signal or externally powered meter with an LED display.
 
With over 30 years in the Digital Panel Meter field, we had to bring you the best that technology would allow. The SPM is a combination of that expertise and newest technology in an industry's standard 1/8 DIN package. We started with a universal display (4 1/2 digit LED display) and embedded Sigma-Delta A/D. We added (Option 2) 3 1/2 LED .8" IF YOU DON’TSEE IT,ASK FOR IT!(Option 4) 4 LED .8" a "Bussed" mother board that we can add any of hundreds of designs from our 30+ years library to deliver the industry's only "Lifetime Warranted" Digital Panel Meter. Whether for Systems or just to monitor, control and/or communicate via Serial I/O. The modular construction of the SPM allows OTEK to customize to your needs without expensive N.R.E., set-ups or minimum orders.
 
Controller: When you order Serial I/O. (Digit 4 Options 1-3), you can order analog out (Digit 6) and/or relays (Digit 7) and we include math functions, X-Y tables & polynomials with it!
 
Displays: You can order the large 0.8" 3 1/2 or 4 digit LED or the 0.6" 4 1/2 LED. NEW white LED displays are now available!  Standard filter is red. For other colors use Option 9 on 8th digit and specify color (depending on availability).

THIS PRODUCT SCHEDULED FOR DISCONTINUATION BASED ON THE AVAILABILITY OF PARTS.  CLICK HERE FOR DETAILS OR SEE MODEL NTM-3 AS A REPLACEMENT.

OTEK's TLP (4.35"W x 4.35"H) puts 3 signal or loop powered panel meters in one compact surface mount package with three individual 3 1/2 digital displays.

You talk, OTEK listens! We were requested to put 3 LPE's in one compact surface mount package with larger digits, like our HI-Q126, so we did it! Now you can have 3 independent and isolated displays, driven from their own current loop (or external power) to concurrently display any 3 parameters. 

Several options are available on the TLP: (See Ordering Information). You can have it as a:
1. 4-20mA input loop powered. (Powerless™)
2. V/mADC Signal powered. (Powerless™)
3. Externally powered for V, mA DC & True RMS, TC, RTD, S-G, %RH, pH ORP, Hz, etc.
The Grades Are: Nuclear (10CFR50B), Mil-Spec (to your Mil-Std.) or Industrial (to published specs.). The Power Inputs Are: Loop Powered, 5-48VDC or 90-265VAC.
 
You can even power your 4-20mA transmitters with the optional 28VDC compliance. The TLP is available in plastic or metal case (for Mil & Nuclear) conforming to ANSI 4" Switchboard standard only 1 1/2" thick with nothing behind the panel that also mounts on existing 1/4 DIN (92 x 92mm) panel cut-out, Sanitary case for 250 Degree F Steam Cleaning and Explosion Proof for Class I, Div. 1 & 2 are available. Intrinsically Safe (I.S.) versions on request. See Foot Note 
under Ordering Information.
 
FAQ:
1. Can I change the scale in the ? eld? Yes. Span & Zero are located on the front for each channel.
2. Can I change the display color sequence? Yes.  Use #9 and specify when ordering.
3. Can I change the display designation? Yes. Use #9 and specify.
4. Can I change the input signal type in the ?eld? No.
5. Do you have Peak & Hold? Yes, see Model: TLD
6. More Questions? Call OTEK at 520-748-7900