Demo Multimeter with Interface (230 V, 50/60 Hz)

• Large, 4-digit LED display, 57 mm high
• Indication of measuring unit
• 5 measuring functions: V, A, Ohm, °C/K and pH
• 4 easy-to-operate keys
• Rear-panel inspection display for the teacher
• Large display for balances, for example
• Galvanically isolated RS232 interface

Universal microprocessor-controlled demonstration multimeter for measuring voltage, current, resistance, temperature and pH value.
The device can also be used as a large display for the following equipment:
U21000 digital counter
U21010 function generator
U21020 power and energy meter
U21030 pressure and temperature meter
U21035 pH/temperature meter
Includes an adapter and interface cable for connecting this equipment. A large display of measured values from electronic balances is also possible via a cable adapter (available on request).
The following balances are presently supported:
Mettler-Toledo PB3001-s
Sartorius LC4201
Ohaus Explorer
Kern 572.
Includes Windows software for setting all parameters on the multimeter, graphic display or representation of the measured data in tabular form, as well as export of this data to a spreadsheet program.

Voltage:
Measurement ranges: 400 mV, 4 V, 40 V, 400 V, 4 kV DC, 4 V, 40 V, 400 V, 4 kV AC
Accuracy: ±1% ± 1 digit
Current:
Measurement ranges: 4 mA, 40 mA, 400 mA, 4 A, 40 A (max. 2 minutes)
20 A (continuous load) DC and AC
Accuracy: ±1% ± 2 digits
Internal resistance:
Voltage paths: 10 MOhm
Current path:
40 A range 50 mOhm
4 A range: 0.1 Ohm
400 mA range: 1 Ohm
40 mA range: 10 Ohm
4 mA range: 100 Ohm
Resistance:
Measurement ranges: 400 Ohm, 4 KOhm, 40 KOhm, 400 KOhm, 4 MOhm
Accuracy: ±1% ± 1 digit
Temperature:
Input: Standard thermocouple NiCr-Ni (type K)
Measurement unit: Celsius (°C), Fahrenheit (°F) or Kelvin (K)
Measurement range: -40°C to +1200°C
Resolution: T < 1000°C, 0.1°C, T > 1000°C, 1°C
Accuracy: ±1% ± 1 digit
PH meter:
Input: BNC plug
Measurement range: 0 to 14 pH
Calibration: Offset (buffer 7 solution) Transconductance (buffer 4 solution)

Temperature compensation:
1: Automatic with an integrated sensor
2: Automatic with an NiCr-Ni thermocouple
3: Manually adjustable from 0 to 50°C
Resolution: 0.01 pH
Accuracy: ±1% ± 1 digit
Computer connection: Serial interface (RS232) for PC (DB9),
galvanically isolated from the measurement inputs
Display:
Front panel: 4-digit LED and sign, 7-segment
Digit height: 57 mm
2-digit LED, 5 x 8 dot-matrix for display of the dimension
Rear panel: 4-digit LED and sign, 7-segment
Digit height: 21 mm
Power consumption: 45 VA
Dimensions: 215 mm x 310 mm x 210 mm
Weight: 5.7 kg
Mains connection, 230 V, 50/60 Hz