4 Digits

4 Digits

Product Description

Model: UMA4
Multi-purpose Digital Panel Meter, 4 Digits

► LED display with high brightness and clarity, capable of displaying up to 4 digits
► Offers three output options: one- to two-stage alarms, analog signals, or RS485 transmission
► Equipped with pressure discharge control, suitable for environmental monitoring

✔ Responsive after-sales service / Customizable / High quality / One-year warranty

Figure 1: Front view
Figure 2: Back view

Product Specification

±0.1% F.S. ±1 digit (DC)
±0.2% F.S. ±1 digit (AC)
Display screen
High brightness red LED
20.5 mm (0.8")
Sampling time

60 cycles/sec

Polarity indication
Automatic with " - " indication
Display range
-1999 ... 9999
Display over range indication


Input over range indication
Parameters indication

Push buttons

Back up memory


Relay contact
AC 250V/5A
DC 30V/7A
Analog output resolution

16 bit

Output communication
Current output: ≦ 10V
Voltage output: ≦ 20mA
RS485 Modbus RTU mode
Baud rate

19200/9600/4800/2400 bps

Tempering temperature
100 ppm/℃ (0℃ ... 60℃)
Ambient temperature& humidity

0℃ ... 60℃/20% ... 90% RH (non-condensing)

Power supply

AC/DC 100V ... 240V
AC/DC 22V ... 50V

Power consumption

< 6.5VA

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