Meriam M201 Rotary Gas Meter Tester - Manual (Page 6)

Keystroke Display
1. Turn unit on using the
On/Off key. Top line reads “ ‘Hold’ to
Test”, Bottom line displays
live Differential Pressure
value
2. Press the Prgm. Key. Top line reads “Program
Mode”, Bottom line reads
“Units Select”
3. Press the ▲ arrow key
twice. Top line reads “Program
Mode”, Bottom line reads
“Time Units”
4. Press the ► arrow key. Top line reads “Time
Units”, Bottom line reads
current mode, Seconds or
Minutes
5. To retain the displayed
time unit, press the Prgm
key and proceed to Step
7. Top line reads “Program
Mode”, Bottom line reads
“Mode Select”
6 a. To change the
displayed Mode, press the
▲ or ▼ arrow key. Top line reads “Time
Units”, Bottom line
displays the new unit
option, Minutes or
Seconds
6 B. To retain the
displayed time unit, press
the Prgm key. Top line reads “Program
Mode”, Bottom line reads
“Time Units”
7. Press the ◄ arrow key. Returns to Measure Mode
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page 6 of 10
Addendum No. 9R124-IR
June, 2010
Time Units Select
The enhanced M201 (shipping since June 1, 2010), includes
a Time Unit Select option in the program menu for Enhanced
Mode operation. The user chooses either seconds or
minutes as the desired time unit for the results display.
To the desired time unit, follow the steps shown on below.