Two channel rh and temperature unit with data logging

Portable humidity and temperature measurement with data logging.

This handheld instrument can be used in combination with up to two HygroClip HC2 probes, using AirChip technology to offer outstanding accuracy and repeatability performance. The range of HC2 probes and the ability to calculate humidity in a variety of different scales (see below) allows the HygroPalm23-A (HP23-A) to monitor both inlet and outlet variables to a process.

Quick spot checks of processes or controlled areas can be made to ensure humidity and temperature requirements are within acceptable limits. The data logging facility allows a time and date stamped record to be stored of the measured data.

This portable unit can be used to decrease measurement costs by using a single instrument to monitor several locations when permanent monitoring is either not required or can not be justified.

The HP23-A also includes all the features of the HygroPalm22-A and can also be used to cross-check permanently installed systems.

The HP23-A calculates humidity in a choice of humidity scales:

Relative humidity in %
Temperature in °C or °F
Absolute humidity in Kg/m3
Dew point/frost point in °C or °F
Wet-bulb temperature in °C
Enthalpy in KJ/Kg
Specific humidity in g/Kg
Vapour concentration in g/m3
Mixing ratio in g/Kg
Saturation vapour pressure in hPa
Partial water vapour pressure in hPa
Water vapour saturation pressure in hPa
Water vapour partial pressure

For further information about humidity measurement and hygrometry issues, please visit our Masterclass section.

GENERAL
Measurement	Relative humidity and temperature
Measurement principle	Rotrincs rh probe and Pt100
Measuring range with interchangeable probe	0 to 100 %rh and up to -50 to 200 °C
Number of probe inputs	2
Probe type	Hygroclip 2 (HC2) or analogue
Max. probe cable length	5 m
Probe Initialisation time	Typically <2 sec (HC2 Probes)
Resolution	Airchip 3000 <0.02%rh and 0.01K (HC2 Probes)
Response time t 63	Probe dependent
Accuracy at 23 ±5 °C	Probe dependent
Operational temp. and humidity range (instrument)	0 to 100 % rh and -10 to 60 °C
Long term stability	<1 %rh / year
Allowed flow rate	Probe dependent
Probe diagnostics (drift,state)	Programmable, default:off
Display and Communications
Display type	Backlit graphical LCD to 3 decimal places (configurable)
Psychrometric calculations	dew point, wet-bulb temperature, mixing ratio, enthalpy, water vapour content, water vapour density
Alarm Indicator	Yes
Real-time clock	Yes, with battery back up
Battery indicator	Yes, status indicator
Trend indicator	Yes
Measurement interval	Typically 1 sec without calculations
Start-up time	Typically <3 Seconds
Data logging	20,000 data point (2 x 10,000 data pairs)
Event logging	System related events (FDA, GAMP)
PC interface	Via interface cable and HW4 software
Calibration Adjustment
Probe adjustment by keypad	1 point or multipoint
Probe adjustment by software	from humidity/ temperature from dew point reference. temperature 2 point, humidity up to 100 points
Firmware update	With internet or HW4 software
User information	from Software HW4 (device manager)
Data processing via HW4	Yes
Device protection via password	Yes
Sensor diagnostics (drift, state)	Programmable; factory default - Off
Max. cable length service cable	5 m
Firmware update	Via HW4 software and service cable
Certification
CE	CE Compliant, 2007/108/EG
IP protection rating	IP40
Fire protection class	Complies UL94-HB
Audit trail and electronic records	FDA 21 CFR Part 11 & GAMP compliant
Shipping
Shipping weight	300 g
MECHANICAL
Dimension	196H (without probe) 268H (with stanard probe)x 72W x 35D mm
Material	Housing: ABS
ELECTRICAL
Power	9 V battery or power supply
Power consumption	Typically 10 mA consumption with back light off
Power for third party probes	Yes, battery voltage
Outputs
Interface	Mini USB
All specifications subject to change

COMPATIBLE PROBES
	Standard Probes HC2-S Details
	Standard Industrial Probe HC2-IC Details
	Metal Industrial Probe HC2-IM Details
	High Pressure Probe HC2-IE1 Details
	High Temperature Handheld Probes HC2-HK25 Details
	Miniature Probes HC2-C04 and HC2-C05 probes Details
	Flush Mount Probes HC2-IP25 Details
	Insertion Probes HC2-P05, HC2-HP28 and HC2-HP50 Details
	Sword Probes HC2-HS28 Details

TYPICAL ACCESSORIES
	Handheld Instrument Set HP23-A-SET Details
	USB cable AC0003 Standard USB A to Mini USB cable, 1.8 m
	Extension Cable E2-02A black, 2 m
	Service Cable AC2001 Mini USB / 7-pin connector
	Desktop stand for handheld instruments DESK-HP
	Humidity standards for 10 %rh, 35 %rh, 80 %rh Details