Deni 5300 Specifications download pdf (Page 15)

4 - Operation4 - Operation

4 - Operation

Read Section 1 and make sure unit is connected properly

(see Section 3) before proceeding.

GENERAL

1. Using Sections 1 and 3 as a guide, connect the 5300.

Before connecting the power mains, double check

all connections (an Ohmmeter is helpful).

Verify that the overcurrent circuit breaker is open

and connect the power mains.

2. Observing the 5300 front panel indicators, turn the

5300 power switch ON and confirm proper

operation - see "Initial Checkout" in Section 1 -

Introduction.

3. Energize the power mains and apply power to the

load by closing circuit breaker CB. If improper

operation occurs, immediately disconnect power

mains. Locate and correct the problem.

The 5300 has:

• Four MODES - HOLD; AVG (averaging), PF

(Power factor) and PH. V. (phase voltage)

• Three AMPS ranges plus AUTO (auto ranging)

• Four DISPLAY selections -Ø1, Ø2, Ø3, (phases

1 through 3) and ΣK

(sum of kilowatts)

• Three VOLTS ranges plus AUTO.

All have adjacent red LEDs indicating the active mode

or measurement range.

AMPERES DISPLAY

The AMPS display is a four digit, unsigned floating

point display of true AC rms or DC current flowing

into the AMPS INPUT connector (red) on the rear panel.

For detailed information see Section 2, Specifications.

The 5300 defaults to AUTO (auto ranging) at DISPLAY

power turn on. AUTO up-ranging occurs if the rms

current exceeds the top of the range value plus about 5

%. AUTO down ranging occurs when the current is just

less than the full range value of the next lower range.

Selection of any amps range push-button activates the

selected range by overriding the AUTO- range selection

- the AUTO LED goes off and selected AMPS LED

illuminates. However, the AUTO up-range function is

always silently monitoring the current and is ready to

up-range the instrument if the current increases above

105% of the range full scale. If the current falls below

the value of the selected range, that range will then

reactivate. The instrument will automatically up-range

from the measured current but will down-range only to

the selected range. The display will show "HELP" when

the maximum rating is exceeded.

VOLTAGE DISPLAY

The VOLTS display is a four digit, unsigned floating

point display of AC rms or DC voltage difference

between the rear panel HIGH (black) and LOW (white)

terminals. The voltage input is differential (neither

terminal tied to common) allowing connection at a

remotely located load. This remote connection removes

the voltage drop in the load connection wires from the

power measurement. The VOLTS - LOW terminal

(WHITE) must be connected to the AMPS -OUTPUT

line at the load - see Figure 1.

The AUTO and manual VOLTS range selection is

identical in operation to the AMPS, as described above.

WATTS OR POWER FACTOR

The WATTS display is five digit, unsigned floating

point display of power in WATTS or POWER FACTOR

(PF) as a decimal number. WATTS is the power ON

default MODE. Press the MODE - PF button to measure

POWER FACTOR.

Watts measurements are from about 100 milliwatts (auto

zero off) through 60 kilowatts, and Power Factors from

0.0001 through 0.9999. WATTS = V * I * cos * =

TRUE POWER The WATTS range is set by the AMPS

and VOLTS active ranges.

Power Factor is:

V I

× ×

cos

POWER

TRUE

APPARENT

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Deni 5300 Specifications Page 15

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