M-35 Digital Panel Meter

Features

Fully scalable 3 1/2 digit process meter
for 4-20 mA, 0-10 mA, 0-2 V, 1-5 V, 0-10 V.
24 x 48 mm (0.94" x 1.89") bezel.
10 mm (0.4") high LED digits.
Powered by 10-30 Vdc.
Power isolated from signal.
Detachable screw terminal connectors.
EM certified (CE Mark).

Model M35 low-cost digital panel meter for process signals

Description

The M-35 Microminiature Process Meter is the solution when panel space is limited or the size and weight of the indicator must be as small as possible. The bezel measures only 24 x 48 mm (0.94" x 1.89"), yet the height of the red LED digits is a full 10 mm (0.4").
The M-35 is a fully scaleable 3 1/2 digit process meter for 4-20 mA, 0-10 mA, 0-2 V, 1-5 V, and 0-10 V signals. It is powered from 10-30 Vdc, so that it can run off batteries. Power and signal are isolated to facilitate panel design, with no worries about ground loop errors. A detachable screw terminal connector provides a benefit rarely found on meters of this size.
Small size, low weight, and isolated DC power make the M-35 ideal for portable test equipment.

Electrical connections of Model M35 low-cost digital process meter

The above diagram for a typical pressure monitoring / manometer application shows how simple the M-35 is to connect. The same DC source powers the transducer and meter. Only three field wires are required.

Removable screw terminal of Model M35 low-cost digital process meter

A removable screw terminal is standard. The connector pin assignments as well as the zero and span adjustments are clearly labeled on the back of the meter.

Specifications

Signal

Signal types
Signal polarity
Scaling method
A/D conversion
Accuracy 4-20 mA, 0-10 mA, 0-2 V, 1-5 V, 0-10 V
Bipolar, single-ended.
Zero & span potentiometers
Dual slope integration
0.2% of range

Display

Number of digits
Display range
Display type
Digit height
Decimal point selection 3 1/2
±1999
Red LED
10 mm (0.39")
Plug-in jumpers behind front panel

Mechanical

Bezel dimensions
Panel cutout
Depth behind panel
Electrical connections
Weight 24 x 48 mm (0.94" x 1.89"), H x W
22.5 x 45 mm (0.89" x 1.77"), H x W
67 mm (2.64") including connector
Four screw terminals, detachable connector
60 g (2 oz)

Electrical

Signal isolation
Power to meter
Signal Input Impedance
Signal Input Impedance 750 Vac
10-30 Vdc, 0.6 W
180 Ohms for Current Inputs
1 Meg Ohm for Voltage Inputs

Environmental

Operating temperature
Storage temperature -20ºC to 60ºC (-4ºF to 140ºF)
-40ºC to 80ºC (-40ºF to 176ºF)

Ordering Guide
M-35 Microminature Process Meter
Includes plug-in screw terminal connectors.

M-35 Microminature Process Meter With 0.4" high LED digits and detachable screw terminals.

M-35 Microminature Process Meter
With 0.4" high LED digits and detachable screw terminals.