MSA Ultima Series User Manual

To update the Ultima Gas Monitor internal date:
1. Press the SEND button.
2. Aim the Controller at the sensor and press the DATE button.
NOTE: Time and date are updated with this command.
• The Ultima Gas Monitor will display the current time and date
for five seconds.
Procedure 8. Enabling/Disabling Ultima Gas Monitor
Calibration Output Signal
The Ultima Gas Monitor is shipped with the calibration output signal
disabled. This means that the output signal will track the gas
concentration value during the calibration process. In some applications,
it may be desirable to enable or lock the calibration output signal to a
pre-determined output value to prevent activation of alarm devices. For
frequency and MUX models, this value is 12 KHZ, which is recognized
by MSA Model 6000 instruments as a calibration signal. 4 to 20 milliamp
output signal models are locked to 3.75 mA during this process
(however, oxygen models lock at 21 mA).
NOTE: See Procedure 15, Setting the Alert Option on an Ultima X
Series Sensor, for details on oxygen sensors calibration signals.
For the MSA Model 5000 and Toxgard instruments, manually place the
instrument in the Calibration Mode.
To enable or disable the calibration output signal:
1. Press the SEND button.
• The display prompts SEND?
2. Press the CAL button.
• The display prompts: Sel Cal Action +.
3. Press either the + or - button and scroll to the CalSIG Enable
display message.
4. Press the ENTER button.
• The display prompts: En Cal 0=N 1=Y.
5. To enable calibration signal output, aim the controller at the sensor
and press the 1 button.
• The command is sent immediately
• The Ultima Gas Monitor flashes: Sig ON
• The Ultima X Series Gas Monitor displays: CAL SIG ON.
3-12

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