ES-1954 Rev.6

P. 3 / 10

INSTALLATION

Auxiliary power supply

AC:

operational voltage range: 85 – 264V,

50/60 Hz, approx. 10VA

DC:

operational voltage range: rating ±10%, or

85 – 150V for 110V rating; ripple 10% p-p

max.; approx. 10W (90mA at 110V)

Operating temperature: -10 to +55°C (14 to 131°F)

Operating humidity: 40 to 85% RH (non-condensing)

Mounting: surface or DIN rail

Dimensions: W125×H100×D128 mm (4.72"×3.94"×5.04")

Weight:

600 g (1.3 lbs)

Accuracy

Voltage, current, watt, var, frequency: ±0.5%

Power factor: ±1.5%

Zero-phase voltage: ±1.0%

Max. zero-phase voltage: ±1.0%

Watthours: ±2.0% (load current 5 – 100%, power factor 1.0)

±2.5% (load current 10 – 100%, power

factor 0.5, lag current)

Temp. conditioning incl. in the accuray: 23 ±10°C

(73.4 ±18°F)

Freq. conditioning incl. in the accuracy: rating ±5%

Response time (0 – 100% ±1%): ≤1 sec.

except for zero-phase voltage: ≤0.1 sec.

Ripple:

1% p-p max.

Auxiliary supply voltage effect: half the accuracy

over voltage range

Power failure protection: VT/CT ratios, watthours,

max. zero-phase voltage are stored in the

non-volatile memory.

Insulation resistance: ≥50MΩ with 500V DC

(voltage input to current input to DC

output to pulse (network) output to aux.

supply to ground)

Dielectric strength: 2000V AC @1 minute

(circuit to ground; voltage input termi-

nals to output terminals; aux. supply to

input or output terminals)

1500V AC @1 minute

(output terminals to ground)

Surge withstand voltage: 1.2/50 µsec., ±6kV

(circuit to ground; voltage input termi-

nals to output terminals)

FRONT PANEL CONFIGURATION

14

16

18

20

22

24

26

28

30

32

A

C

15

1

2

3

4

5

6

7

8

9

10

17

19

21

23

25

27

29

31

33

B

11

12

13

DATA Display

SELECT Rotary SW

FUNCTION SW

Terminator

Control Buttons

OFF

ON

SW1

Run mode

Set mode

SW2

Output Adj. mode

Configure mode

SW3

Zero adj.

Span adj.

SW4

Measured value output Simulated rated value output

SW5

—

—

SW6

Run mode

Assign mode

DATA display: green LED; 5 mm (.2 in)

FUNCTION SW: Used to turn the unit into SET

mode and choose functions.

SELECT rotary SW: Used to choose output channels,

programmable items, etc. in Set mode.

Control buttons: Used to increase (+) / decrease (–)

the values, or move forward (+) / back (–) to other

items in Set mode.

Continuously pressing the button increases incre-

mental speed.

Terminator: For Modbus communication.

■PROGRAMMING PROCEDURE (example)

•Zero/Span Adjustments

SW1 : ON (Set mode)

SW2 : OFF (Output Adj. mode)

SW3 : OFF (zero) or ON (span)

Rotary SW : Choose the output channel.

Control buttons : Watching the DATA display show-

ing adjusted value, press (+) for increasing or (–) for

descreasing the value. Adjustable to ±5%.

•Configuration Change (range, lag/lead, etc.)

SW1 : ON (Set mode)

SW2 : ON (Configure mode)

Rotary SW : Choose the item to be programmed.

Control buttons : Watching the DATA display show-

ing data No., press (+) or (–) for changing data.

•Assigning Output Channels

SW1 : ON (Set mode)

SW6 : ON (Assign mode)

Rotary SW : Choose the output channel.

Control buttons : Watching the DATA display show-

ing measuring item No., press (+) or (–) for changing

data.