A multi-purpose handheld test instrument that can be used as an adjustable current load, adjustable power supply, or precision current source. The 1077 is commonly used for the testing and simulation of milliamp transducer systems.
Compact and rugged design make the 1077 ideal for use in both the lab and field, with protective rubber cover to increase durability. The instrument is built to withstand arduous use, meaning it is well suited to process control applications.
Rechargeable batteries and mains charger are supplied with the unit as standard. Complete recharge time is 10 to 12 hours although sufficient charge for a few hours operation can be obtained with only 30 minutes charge. Full charge allows 10 hours typical use. The battery level is monitored by an indicator on the top of the 1077.
3 operating modes
100 mA source and load
24 V line mode
Accuracy 0.02 %
Battery level indicator
Supplied with protective cover
The instrument connections are via safety terminals that are compatible with standard plugs, 4 mm shrouded plugs, bare wires, and spade terminals.
These terminals are specifically designed with safety features including limited opening distance and a raised flange around the metal connection surface. This ensures that the clearances are sufficient to make the exposed metal parts touch-proof.
The 1077 comes fitted with an ergonomic rubber cover providing increased protection and durability. It has a textured grip for comfortable handling and side openings to place labels.
It is easy to remove if the user prefers a stand-alone unit or to house the 1077 in the optional 9027 carry case.
1077 Modes of Operation
As an adjustable current load (simulating the transducer) on the line, the 1077 will draw up to 100 mA. The required current is set by the front panel controls.
Used as an adjustable power supply (14 V to 40 V), the 1077 provides accurate measurement and display of the current drawn from the circuit.
Utilise the 1077 as a precision current source with 14 V to 40 V maximum (adjustable) drive capacity. It will source the set current up to 100 mA to the loop.
The rugged design and portability make the unit suitable for field calibration of process loop devices. It is also commonly used for instrumentation engineering training.
Current Source and Load
0 to 100 mA in 3 ranges:
0 to 99.99 mA in 10 μA steps.
0 to 9.999 mA in 1 μA steps.
0 to 999.9 μA in 0.1 μA steps.
± (0.02 % of setting + 0.02 % of range + 0.2 μA).
Less than 60 ppm/°C. Less than 25 ppm/hour at constant temperature.
Less than 15 ppm of full scale.
Adjustable from 14 to 40 V (Source mode).
2.4 W maximum.
3 V minimum to 40 V maximum (Load mode).
Voltage Limit Indicator
Provides indication of insufficient drive voltage.
24 Volt Line Simulation
24 V Line Simulation
Adjustable 14 V to 40 V, 100 mA current limit, Maximum output power 2.4 W.
A 3.5 digit (1999 max) LCD display indicating line current.
0 to 20 mA.
0.2 % of reading + 1 count.
H 200 x W 75 x D 110 mm (H 215 x W 100 x D 120 mm including protective cover).
1.1 kg (1.5 kg including protective cover).
NiMH rechargeable batteries with external mains recharger (supplied).
Protective cover (fitted), rechargeable battery pack (installed) with mains charger, and user manual.
Carry case (protective cover is removed when used). Calibration certificates: Traceable (factory) and accredited (ISO 17025).
Country of Origin
Packed Dimensions: L 31 x W 24 x H 25 cm / Packed Weight: 3 kg