GHM Delta OHM HD50CR-AS, Руководство по эксплуатации

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HD50CR-AS
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V1.1
1 INTRODUCTION
HD50CR-AS is a relative or differential low pressure transmitter and data logger de-
signed for wall flush-mounting. Measuring range ±100 Pa.
A silicon piezoresistive sensor with high accuracy and temperature compensation is
used, which allows excellent linearity, repeatability and stability over the time. The
auto-zeroing feature allows stable measurements over the time without the need to
recalibrate.
An input for an optional relative humidity and temperature combined probe is provid-
ed. The absolute humidity, the Dew Point and the wet bulb temperature can be calcu-
lated.
Three 0…5/10 V and 0/4…20 mA analog outputs and a digital RS485 output with
“Slave” Modbus-RTU protocol for connecting the instrument to a network of sensors
are available.
The electroluminescent display has an inattinic red protection. The front keyboard al-
lows scrolling the real time measurements and configuring the instrument.
Equipped with a USB port with mini-USB connector for the connection to a PC.
For each detected quantity, two alarm thresholds can be set by the user. Exceeding a
threshold is signaled acoustically, by means of the internal buzzer, and visually, by
lighting the alarm LEDs on the front panel (only for the three measurements associat-
ed with the analog outputs). An alarm hysteresis and a delay in the generation of the
alarm can be configured for each detected quantity.
The PC software HD35AP-S allows configuring the instrument, viewing the real time
measurements, downloading and viewing the data into a database. The HD35AP-
CFR21 software option allows the protection of recorded data and configuration in re-
sponse to FDA 21 CFR part 11 recommendations.
Brushed stainless steel front panel.
The instrument is supplied factory calibrated.