Products Catalog

Specification

Description
HD 2047 is a handheld instrument designed to test and calibrate instruments with
Pt100 input (100© a 0°C) and voltage/current outputs, such as active or passive
temperature transmitter, recorders, testers and data loggers, etc.
HD 2047 simulates up to 24 fixed values, following the Pt100 scale from -100°C
up to +500°C, with a 2, 3 or 4 -wire connections. The set points selection is made
through a rotary switch placed on the front part of the instrument. Whatever
operating mode is chosen, Pt100 output is always active.
HD 2047 can measure with high accuracy voltage/current outputs of any
transmitter connected to the instrument input: -20V...+20V continuous voltage
range and 0...22mA continuous current range.
The instrument can also calibrate and test the working process of a passive
transmitter and simulates the Pt100 temperature input, providing power supply to
the transmitter and measuring the current inside it with no external power supply
required.
The instrument is provided with three different keys:
ON/OFF turns the instrument on and off. Upon power on, HD 2047 sets
automatically to voltage measuring mode.
MODE selects cyclically the operating mode; by pressing the key consecutively,
you select in the following order:
1. voltage measurement;
2. current measurement;
3. current measurement with 4...20mA loop power supply.
RANGE during the measuring process (voltage/current), this mode allows
the full scale selection and the best resolution for the measuring in
progress: -1.999...+1.999, -19.99...+19.99 and -199.9...+199.9.
L’HD 2047 is internally protected against any kind of connecting error made by the
operator: it is highly recommended anyway not to exceed voltage/current limits
shown in technical data.
A battery sign on the display lights up to indicate that batteries are low and must
be replaced.
Technical data (@ 20°C)
GENERAL
Power supply
4 batteries 1.5V, AA size (the input for the 9Vdc
external supplier is provided only upon request)
Operating time using 1.5V
batteries with capacity of
2250mAh
160 h (in “V READ� and “mA READ� operating mode)
30 h @ loop current = 12mA (in “2 WIRE� operating mode)
Low batteries signal
The battery sign lights up with a battery voltage of about
3.6V
Operating temperature -5...+50°C
Operating relative humidity 0...90%R.H. (not condensing)
Weight/dimensions 580 g (without batteries) / 23x70x230 mm
CONTINUOUS VOLTAGE MEASURE
Measure range
-1.999V...+1.999V: 1mV resolution
-19.99V...+19.99V: 10mV resolution
Accuracy
±1mV: range -1.999V...+1.999V
±10mV: range -19.99V...+19.99V
Input resistance 1M©
Maximum voltage applied to
terminals
48Vdc
CONTINUOUS CURRENT MEASURE
Measure range
0.00mA...19.99mA: 10¼A resolution
0.0...22.0mA: 100¼A resolution
Accuracy
±(0.01mA+0.05% of range): range 0.00mA...19.99mA
±0.1mA: range 0.0mA...22.0mA
Shunt resistance 20©
Overload protection Current limit: 25mA
PASSIVE TRANSMITTERS: POWER SUPPLY/ MEASURE
Measure range
0.00mA...19.99mA: 10¼A resolution
0.0...22.0mA: 100¼A resolution
Accuracy
±(0.01mA+0.05% of range): range 0.00mA...19.99mA
±0.1mA: range 0.0mA...22.0mA
Shunt resistance 20©
Overload protection Current limit: 25mA
Maximum load @20mA 700©
Applied voltage 14Vdc
SIMULATING A Pt100
Type of RTD
Pt100 (100© a 0°C, ±=0.003850, EN60751, IEC751,
BS1904)
Temperature values 24 fixed values from -100 up to +500°C
Accuracy ±0.05% of simulated value
Room temperature effect ±5ppm / °C
Maximum power loss 125mW
Maximum load current 20mA
Ordering codes
HD 2047 Pt100 Simulator measures current loop and voltage signals from
transmitters. The kit includes the instrument with batteries, a 4-wire and a
2-wire cable (L=600 mm) for the connection.