MSA Ultima Series User Manual

To Change the Address
1. Press the SEND button.
2. Press the ADDRESS button.
3. Enter the number of the address to be set.
4. Aim the Controller at the Ultima Gas Monitor and press the
ENTER button.
• The Ultima Gas Monitor displays the new address
for five seconds.
Procedure 12.
Viewing the Previous Successful Calibration Date
1. Press the SEND button.
• The display prompts: SEND?
2. Press the DISPLAY button.
• The display prompts: SeL Dsp Item +
3. Press the + or - button to scroll and find: Prev. Cal Date.
4. Aim the Controller at the Ultima Gas Monitor and press the
ENTER button.
• The Ultima Gas Monitor displays the last previously
successful calibration date.
Procedure 13. Calibrating/Checking
the 4-20 mA Ultima X Series Outputs
1. Press the SEND button.
• The display prompts SEND?.
2. Press the CAL button.
• The display prompts: Sel Cal Action +.
3. Press the + or - button until the display prompts: 4-20;
then, press the ENTER button.
• The display prompts: 0=4mA 1=20mA.
4. To Calibrate/Check the 4 mA output, press the 0 button, to
Calibrate/Check the 20 mA output, press the 1 button.
• The display prompts: 0 = Check 1=Adjust.
5. To CHECK, aim the controller at the sensor and press the
ENTER button.
• The display toggles between gas value and CAL.
3-15

MSA Ultima Series Specifications

General

Display	LCD with backlight
Communication Ports	RS-485, Modbus RTU
Measurement Range	Depends on sensor connected
Accuracy	Depends on sensor connected
Outputs	relays
Certifications	UL