Revision 2  RMA803 Remote Indicator User's Guide   14 
  Performance Specifications 
*Reproduces the transmitter signal exactly to within its resolution 
 
   
Parameter      Deg. C                 Deg. F 
Ambient Temperature   
Reference  -23 +/-2 °C                -73 +/- 2°F 
Rated  -40 to 85 °C                           -40 to +185°F 
Operative  -20 to 70 °C                         -4 to +158°F 
Transportation/Storage  -50 to +100°C                               -58 to +212°F 
   
Humidity (% RH)   Rack Mounting                           Field Housing 
Reference   10 –  55% RH                     10 – 55% RH 
Rated     5 -  95% RH              5 – 100% RH 
Operative   5 – 100% RH                      5 – 100% RH 
Transportation/Storage   5 – 100% RH                      5 – 100% RH 
 
 
Design Specifications   
Input Signal  4-20 mA 
Accuracy: 
•  Analog 4-20 mA Mode 
•  Temperature Effect 
•  DE
 
+/- 0.1% of Span @ 23 +/-2 °C (+/- 1 digit) 
+/- 0.01 % of Span /°C (+/- 1 digit) 
Same as transmitter* 
Honeywell Digital (DE) Mode 
Reproduces the transmitter signal exactly to within its 
resolution 
Display  6 digits numeric indication 
Display Resolution 
0.01  unit for reading range (-999 to 999)  
0.1  unit for reading range (-9999 to -1000) or (1000 unit to 9999). 
1 unit for reading range (-99999 to -10000) or (10000  to 99999 ). 
10 units for reading range (-999999  to -100000 ) or (100000 to 
999999). 
Display Update Rate  2 seconds 
Display Indication Accuracy  0.1% of calibrated span (+/-1 digit) 
Maximum Meter Voltage  30V DC 
Max Loop Voltage Drop  ≤ 2.3V @ 21.5mA 
Min Loop Operating Current  3.6mA 
Power Fail 
All calibration constants are stored in non-volatile memory 
and are not affected by power loss. 
Failure mode  LCD display failure will not affect transmitter operation 
Reverse Polarity Protection   Yes 
Loop Supply Voltage  
Requirement 
Min. loop voltage = 2.3Vdc + MinVTx + (Rloop * 22mA) 
Where: 
MinVTx is the transmitter minimum supply voltage 
Rloop is the resistance on the loop (in ohms) 
Display Performance 
The LCD display will turn blank below -20 °C  and above 
70 °C   
(-4°F and 158°F), rendering the display unreadable. 
However the loop will continue to function.