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UNIVERSAL PANEL METERS

OMM 323UNI
OMM 323UNI panel meter small
OMM323UNI panel meter enlarged image
3½-digit programmable display / universal panel meter

OMM 323UNI Series meters are economical 3½-digit programmable panel meters designed for basic applications. OMM 323UNI is based on a single-chip microcontroller with A/D convertor. This instrument can be configured for eight different input settings that are easily accessible in the instrument's menu. The meter is designed for high accuracy, stability and ease of control. Choose red or green LED display option.

  • 5 Year Warranty
  • Multifunction input: AC, DC, Process Monitor, RTD, T/C, DU, Ni and resistance
  • DC Voltmeter and ammeter, ohmmeter, T/C & RTD thermometer
  • Display unit for linear potentiometers
OMM 323UNI data sheet

Data Sheet

Display Range Accuracy Power Output Size

±1999
9.1 mm
red or green

±90/±180 mA
±30/±60 mV
±1/±20/±40/±80 V
±20 mA/4 to 20 mA
±2/±5/±10 V
0 to 100/300 Ω
0 to 3/24/30 kΩ
Pt 50/100/1,000
Cu 50/100
Ni 1,000/10,000
J/K/T/E/B/S/R/N/L
Linear potentiometer

±0.15 %
(of range)

10 to 30 VDC/24 VAC
10 to 30 VDC/24 VAC, isolated

1/32 DIN
bezel: 48 x 24 mm
cutout: 45 x 22.5 mm


OML 343UNI
OML 343UNI panel meter small
OMM343UNI large
3½-digit universal programmable display / panel meter

Model OML 343UNI is a simple and economical 3½-digit universal programmable panel meter. Based on a single-chip microcontroller with A/D convertor, this instrument can be configured for eight different input settings, that are easily accessible in the instrument's menu. The OML 343UNI is designed for high accuracy, stability and ease of control.

  • 5 Year Warranty
  • Multifunction input: AC, DC, Process Monitor, RTD, T/C, DU, Ni and resistance
  • DC voltmeter and ammeter, ohmmeter, T/C & RTD thermometer
  • Digital filters, linearization
OML 343UNI data sheet

Data Sheet

Display Range Accuracy Power Output Size

±1999
14 mm
red or green

±90/±180 mA
±30/±60 mV
±1/±20/±40/±80 V
±20 mA/4 to 20 mA
±2/±5/±10 V
0 to 100/300 Ω
0 to 3/24/30 kΩ
Pt 50/100/1 000
Cu 50/Cu 100
Ni 1,000/Ni 10,000
J/K/T/E/B/S/R/N/L
Linear potentiometer

±0.15 % (of range)

10 to 30 VDC/24 VAC

1x relay

1/8 DIN
bezel: 96 x 48 mm
cutout: 92 x 45 mm


6-digit programmable display / universal panel meter

Model OMM 350UNI is a small, 6-digit panel measuring instrument with universal inputs. Instrument is based on a single chip microcontroller with accurate A/D convertor, which assures high accuracy, stability and easy programming.

  • 5 Year Warranty
  • Multifunction input: DC, Process Monitor, RTD, T/C, DU
  • DC Voltmeter and ammeter, ohmmeter, T/C & RTD thermometer
  • Display unit for linear potentiometers
OMM 350UNI data sheet

Data Sheet

Display Range Accuracy Power Output Size

±1999
9.1 mm
red or green

±90/±180 mA
±30/±60 mV
±1/±20/±40/±80 V
±20 mA/4 to 20 mA
±2/±5/±10 V
0 to 100/300 Ω
0 to 3/24/30 kΩ
Pt 50/100/1,000
Cu 50/100
Ni 1,000/10,000
J/K/T/E/B/S/R/N/L
Linear potentiometer

±0.2 % (of range)

10 to 30 VDC/24 VAC, isolated

2x relays

bezel: 72 x 24 mm
cutout: 68 x 21.5 mm


3½- or 4-digit programmable display / universal panel meter

The OM 352UNI Series of economical programmable universal panel meters are available in 3½-and 4-digit models. It is based on a single-chip microcontroller with an A/D convertor which ensures good accuracy, stability and easy programming. The OM 352UNI can be configured for 8 different input signal types. It is available with either 14 mm or 20 mm display, which is 3-color and its color can change when a user programmed value is reached. Excitation option.

  • 5 Year Warranty
  • Multifunction input: AC, DC, Process Monitor, RTD, T/C, DU, Ni and resistance
  • DC Voltmeter and ammeter, ohmmeter, T/C & RTD thermometer
  • Display unit for linear potentiometers
OM 352UNI data sheet

Data Sheet

Display Range Accuracy Power Output Size

3½- digit model:
±1999
14 mm
red or green

4- digit model:
20 mm
red/green/
orange

±20/±60/±1 000 mV
0 to 20/4 to 20 mA
0 to 2/5/10 V
0 to 300 Ω/1.5/3/30 kΩ
Pt 50/100/500/1,000
Cu 50/100
Ni 1,000/10,000
J/K/T/E/B/S/R/N/L
Linear potentiometer

±0.2 % (of range)

10 to 30 V AC/DC
80 to 250 V AC/DC

2x relays
0 to 5 mA
0/4 to 20 mA
0 to 2/5/10 V
RS 232/485

1/8 DIN
bezel: 96 x 48 mm
cutout: 92 x 45 mm


4- or 6-digit programmable display / universal panel meter

Model OM 402UNI Series of universal programmable panel instruments are available in 4- and 6-digit models. Based on a single chip microcontroller with a fast 24-bit A/D convertor, it can be configured for 8 different input signal types, easily set in the instrument's menu.

  • 5 Year Warranty
  • Multifunction input: DC, Process Monitor, RTD, T/C, DU, Ni, CU and resistance
  • DC Voltmeter and ammeter, ohmmeter, T/C & RTD thermometer
  • Display unit for linear potentiometers
  • Excitation option
OM 402UNI data sheet

Data Sheet

Display Range Accuracy Power Output Size

4- digit model:
-999 to 9999
20 mm
red/green/
orange

6- digit model:
-99999 to
999999
14 mm
red or green

±60/±150/±300/±1200mV
0 to 5/20 mA/4 to 20 mA
±2/±5/±10/±40 V
0 to 100 Ω/1/10/100 kΩ
Pt 50/100/500/1 000
Cu 50/Cu 100
Ni 1 000/Ni 10 000
J/K/T/E/B/S/R/N/L
Linear potentiometer

Option A
±0.1/±0.25/±0.5/±2/±5 A
±100/±250/±500 V
Option B
(expansion by 3 PM inputs)
3x 0 to 5/20/4 to 20 mA
±2/±5/±10/±40 V

±0.1 % (of range)

10 to 30 V AC/DC
80 to 250 V AC/DC

5 to 24 V DC
4x relays
0 to 5 mA
0/4 to 20 mA
0 to 2/5/10 V
RS 232/485
MODBUS,
PROFIBUS
RTC, FAST

1/8 DIN
bezel: 96 x 48 mm
cutout: 92 x 45 mm


Call Bristol Instruments on 877-866-8500 or email us for complete information including specifications or to discuss your application