User manual

H61.0.01.6C-03 User’s Manual GMH3156 page 5 of 12
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D-93128 Regenstauf Fax: 0049 - 9402 / 9383-33 eMail: [e-mail]
AL.Hi/AL.2
AL.2-Lo...
Sensor2-Max
Max alarm rail Sensor 2 (not when AL.2 = oFF)
Sensor2-Max is the upper display range of sensor 2
AL. DIF
On
Alarm sensor difference on, with buzzer sound
no.So
Alarm sensor difference on, without buzzer sound
oFF
no alarm function for sensor difference
AL.Lo DIF
-19999..AL.DIF-Hi
Min alarm rail of difference (not when AL.DIF = oFF)
AL.Hi DIF
AL.DIF-Lo..19999
Max alarm rail of difference (not when AL.DIF = oFF)
Set Logger: Configuration Of Logger Function *
CYCL
Cyclic: logger function ‚cyclic logger‘ *
Stor
Store: logger function ‚individual value logger‘ *
Func
oFF
no logger function *
CYCL
1..3600
Cycle time of cyclic logger [seconds] *
SEt
LoGG
Lo.Po
on/oFF
Low-power logger with very low power consumption
(only for cyclic logger and slow measuring rate)
*
Set Clock: Setting Of Real Time Clock
CLOC
HH:MM
Clock: Setting of time hours:minutes
dAtE
TT.MM
Date: day.month
SEt
CLOC
YEAr
YYYY
Year
(*) This menu can only be invoked if the logger memory contains no data! If parameter
should be changed the logger memory has to be cleared before! (key 6, p.r.t. chapter 3)
(**) This menu can only be invoked if a referring sensor is connected to connection 1.
When using a second sensor at connection 2 then changes are taken over.
2.1 Different Kinds Of Measuring: „rAtE-Slo, -P.dEt, -FASt“
Three different kinds of measuring pressure are supported. Two of them (P.dEt and FASt) are working with
high measuring frequency of more than 1000 measurings per second.
2.1.1 rAtE-Slo: Standard Measuring
Measuring rate 4Hz, averaging and filter functions are active.
Application: Measuring of slowly changing or static pressures, e.g. measuring of leakproofness, athmospheric pressure...
Highest accuracy, high noise immunity (EMI and unstable measuring signals), low power consumption.
2.1.2 rAtE-P.dEt: Peak detection
Measuring rate >1000Hz, the value is displayed unfiltered.
Application with logger function: Measuring of short pressure peaks or fast changing pressures with a
resolution of < 1ms. The cyclic logger function records the arithmetic mean value, the highest and the lowest
peak of the refering time interval.
Attention: higher power consumption, measuring is sensitive to noise (EMI,..).
2.1.3 rAtE-FASt: Fast filtered measuring
Measuring rate >1000Hz, the value is filtered slightly (higher noise immunity than P.dEt, small peaks will be
filtered out), apart from that identical behaviour like P.dEt.
2.2 Measuring Of Water Level – Display Unit [m]
When using suitable waterproof pressure sensors the unit [m] for meters of water can be set in the menu
“Unit“. 10m of water are roughly 1 bar over pressure. Measurings can be made e.g. like described below :
• With one abs. pressure sensor (SL oFF!): Press ‚Tara‘ when sensor is at ambient air and then bring
sensor to the depth to be measured. The display shows now the depth in [m].
• With two abs. pressure sensors (SL oFF!): Sensor 2 at ambient air (does not have to be waterproof),
waterproof sensor 1 at water depth to be measured. Don’t press ‚Tara‘, the depth can already read from
the DIF-display and is compensated for pressure changes in ambient air.
• With one rel. pressure sensor: bring tube connection for lower press. in contact to ambient air by means
of a tube (no water contact!) and bring the sensor with its open press. connection for higher pressure to
water depth to be measured (display and is compensated for pressure changes in ambient air).