Selecting The Engineering Units; Configuring The Alarms; Table 3 Engineering Unit Selection - Michell Instruments Pura User Manual

OPERATION
3.1.1

Selecting the Engineering Units

1. Ensure security lockout switches are in the OFF position
(Section 4.1)
2. While pressing
keep pressing
The monitor can display and output a variety of different engineering units. The selection
of engineering units is achieved by setting
To set the range and resolution for ppb
Required Display Unit
Dew point in °C
Dew point in °F
ppm
ppm
ppm
ppm
ppb
For example: setting
maximum of 99.99. Should the measured value exceed 100 ppb
will be displayed.
3.1.2

Configuring the Alarms

Ensure security lockout switches are in the OFF position (Section 4.1) before proceeding.
Press SETUP
Alarm Setpoint
The setpoints of the relays are set by setting
to 4), to the required level.
Digit 1 of SPC_n controls the type of alarm. For the relays to be energized above the
setpoint SPC_n = 0xx
For the relays to be energized below the setpoint
18
Pura Advanced Online Hygrometer User Manual
SETUP, press  once. Release both buttons and
SETUP until CODE 7
CODE 4
207
217
V
V
V
V
V
Table 3
CODE 7 to 104, displays ppb
and  simultaneously to gain access to the setpoint codes.
is displayed.
CODE 4 CODE 7
and
and ppm , set digit 3 of
V V
CODE 7
000
000
- 100
- 101
- 102
- 103
104
Engineering Unit Selection
with a resolution of 0.01 to a
V
SP_n (where n = 1 to 4 and represent SP1
SPC_n = 1xx
97074 Issue 10, December 2021
as shown below.
CODE 7
to:-
Range
1...9999 ppm
V
0.1...999.9 ppm
V
0.01...99.99 ppm
V
0.001...9.999 ppm
V
0.01...99.99 ppb
V
with this setting, oVEr
V