Features
- Universal input
- Includes 3 SPST mechanical alarm relays
- Advanced functionality
- 24 VDC sensor power supply available
- Easy-to-read, 5 digit, 14-segment large color LCD display
- Scrolling text feature for parameters
- Navigation guide & navigation keys
- Programmable function keys
- User settable default values
- Compact design of 65-mm depth
- RS-485 (Modbus/RTU, peer to peer, coordinated, PC-Link)
- RoHS/WEEE compatible
- NEMA4/IP56 front panel
The Yokogawa UM33A digital indicator with alarms is a 1/8 DIN indicator designed to monitor and display processes such as temperature, pressure, flow rate, and other types of data while providing an alarm when an input signal reaches a preset value.
The Yokogawa UM33A digital indicator has up to eight alarm outputs and eight screen display points, twice the number of comparable models. A dedicated program eases the task of entering alarm values and other information, eliminating the need to input them using the keys on the front panel of each device. Measurements are shown on the large, easy to ready, 14 segment color LCD. The UM33A includes a scrolling text feature for parameters, user-friendly navigation, programmable function keys, user settable default values, and RS-485 (Modbus/RTU, peer to peer, coordinated, PC-Link) communications.
Input SpecificationsContact I/O FunctionSafety and EMC Standards
Input Type
Range
Accuracy
Type K T/C
-270.0 to 1370.0°C -270.0 to 1000.0°C -270.0 to 500.0°C
±0.1% ±1 digit ≥ 0°C ±0.2% ±1 digit < 0°C±2% ±1 digit < -200.0°C
Type J T/C
-200.0 to 1200.0°C
±0.1% ±1 digit ≥ 0°C ±0.2% ±1 digit < 0°C
Type T T/C
-270.0 to 400.0°C 0.0 to 400.0°C
±0.1% ±1 digit ≥ 0°C ±0.2% ±1 digit < 0°C ±1% ±1 digit < 200°C
Type B T/C
0.0 to 1800.0°C
±0.15% ±1 digit ≥ 400°C ±5% ±1 digit < 400.0°C
Type S T/C
0.0 to 1700.0°C
±0.15% ±1 digit
Type R T/C
0.0 to 1700.0°C
±0.15% ±1 digit
Type N T/C
-200.0 to 1300.0°C
±0.1% ±1 digit±0.25% ±1 digit < 0°C
Type E T/C
-270.0 to 1000.0°C
±0.1% ±1 digit ≥ 0°C ±0.2% ±1 digit < 0°C ±1.5% ±1 digit < -200.0°C
Type L T/C
-200.0 to 900.0°C
±0.1% ±1 digit ≥ 0°C ±0.2% ±1 digit < 0°C
Type U T/C
-200.0 to 400.0°C 0.0 to 400.0°C
±0.1% ±1 digit ≥ 0°C ±0.2% ±1 digit < 0°C
Type W T/C
0.0 to 2300.0°C
±0.2% ±1 digit
Platinel 2 T/C
0.0 to 1390.0°C
±0.1% ±1 digit
PR20-40 T/C
0.0 to 1900.0°C
±0.5% ±1 digit ≥ 800°C
W97Re3-W75Re25 T/C
0.0 to 2000.0°C
±0.2% ±1 digit
JPt100 RTD
-200.0 to 500.0°C -150.00 to 150.00°C
±0.1% ±1 digit
Pt100 RTD
-200.0 to 850.0°C -200.0 to 500.0°C -150.0 to 150.00°C
±0.1% ±1 digit
Standard Signal
0.400 to 2.000 V 1.000 to 5.000 V 4.00 to 20.00 mA
±0.1% ±1 digit
DC Voltage/Current
0.000 to 2.000 V 0.00 to 10.00 V 0.00 to 20.00 mA -10.00 to 20.00 mV 0.0 to 100.0 mV
±0.1% ±1 digit
Alarm Functions
Parameter
Details
Types
PV (measured value) high/low limit alarm PV rate of change alarm Self-diagnosis alarm
Alarm Output Action
Alarm stand-by action Alarm latch (forced reset) function Alarm hysteresis Alarm ON/OFF delay timer
Number of Alarm Settings
8
Alarm Output Points
9 (differs by model)
Parameter
Details
Contact Input
PV peak and bottom values reset Latch release (ACK) LCD backlight on/off switch PV red/white switch Message interrupt displays 1 through 4
Contact Output
Alarms 1 through 8 Status output
Parameter
Details
Safety
Compliant with IEC/EN61010-1 (CE)approved by CAN/CSA C22.2 No.61010-1UL61010-1: Pending approval
Installation Category
CAT. II Pollution degree: 2
Measurement Category
I (CAT. I)
EMC Conformity Standards
CE marking EN61326-1 Class A, Table 2 (For use in industrial locations) EN61326-2-3EN 55011 Class A, Group 1EN 61000-3-2 Class AEN 61000-3-3C-tick markEN 55011 Class A, Group 1
Front Panel Rating
Dust-proof and drip-proof: IP56
