1. "R2" Rack Mount Adaptor:
Use of this option is recommended when mounting the Model 2500EP in a standard 19" equipment rack.

2. "BBL" Banana-to-Banana Cable:
48" shielded cable terminated in dual banana plugs. This cable may be used for input or output connections to the calibrator.

1. "R3" Rack Mount Adaptor:
Allows the 2555A to be mounted in a standard 19" equipment rack enclosure. 2 Set per unit

2. "HC" 100A Cable Option:
Provides a 6-foot cable set terminated on one end in copper ring lugs and on the other end with banana plugs that mate with the 2555A's 100A terminals. Recommended for use with the Valhalla 2575A Current Shunt.

3. "C-1000" 10 Turn Coil:
Valhalla offers the option "C1000" along with the Valhalla 2555A, to make the calibration of clamp-on ammeters, current transformers, and a variety of current sensor (magnetic field based) devices a simple task. The basic principle envolves the 2555A driving 100 amps per turn into a 10 turn coil. The Valhalla 2555A Current Calibrator can easily drive the ten turn option "C1000" and simulate 1000 amps. By placing the clamp-on ammeter around and thru the windings of the "C1000" the clamp-on meter under test can be verified for accuracy, and frequency response.

4. "HMF" 100A Cable Option:
Provides 4-gauge copper welding cable terminated in 100A plugs and Option "Jaws" heavy duty 2" Kelvin clips.

5. "BBL" Banana-to-Banana Cable:
48" shielded cable terminated in dual banana plugs. This cable may be used for input or output connections to the calibrator. (Low Leakage)

1. "HC" 100A Cable Option:
Provides a 6-foot cable set terminated on one end in copper ring lugs and on the other end with banana plugs that mate with the 2555A's 100A terminals. Recommended for use with the Valhalla 2555A Current Calibrator.

2. "BBL" Banana-to-Banana Cable:
48" shielded cable terminated in dual banana plugs. This cable may be used for input or output connections to the calibrator. (Low Leakage)

3. "RX-3" Rack Mount Adapters:
"RX-3" provides rack mounting hardware for the 2575A model. "R4" rack adapter accommodates the standard NEMA 19" rack cabinet dimensions.

1. "TL-3" IEEE Interface:
Option TL-3 is an IEEE-488 GPIB Talk-Listen interface that allows control via the IEEE-488 Bus for remote range programming and calibration. this option includes a port that interfaces with the Valhalla Model 2500EP Current Calibrator for remote current range programming.

2. "LNF" Wideband Noise Filter:
Option LNF may be necessary in applications where background AC noise must be kept to a minimum. This option reduces wideband microprocessor and power supply noise by eliminating the swithing power supply and adding extra filtering to the output circuitry. A 2701C equipped with Option LNF is limited to ±40V maximum output.

3. "RX-3" Rack Mount Adapters:
"RX-3" provides rack mounting hardware for the 2701C model. "R4" rack adapter accommodates the standard NEMA 19" rack cabinet dimensions.

4. "SL-48" Low-Thermal Cable:
48" low-thermal shielded cable terminated at each end in high quality gold-plated copper spade lugs. Use of this option is recommended for low voltage levels or whenever the best performance is required.

5. "BBL" Banana-to-Banana Cable:
48" shielded cable terminated in dual banana plugs. Use of this option is recommended for signal levels where inaccuracies of 1µV or more can be tolerated.