APLVD400 Red Lion Controls, APLVD400 Datasheet - Page 3

• Manufacturer Part Number: APLVD400
• Description: APOLLO DC VOLT DPM 115V
• Manufacturer: Red Lion Controls
• Series: Apollor
• Type: Voltmeterr

Specifications of APLVD400

• Rohs Compliant: NA
• Measuring Range: 0 ~ 300V
• Display Style: Red Characters, Black Background
• Display Type: LED
• Display Face Size: 3.80" L x 1.95" W (96.5 x 49.5mm)
• Display Digits: 3.5
• Display Digits - Height: 0.560" (14.22mm)
• Backlight: Without
• Mounting Type: Panel Mount
• Termination: Terminal Block
• Voltage - Supply: 115VAC
• Accuracy: ±0.1% %
• Connection Type: Terminal Block
• Cut Out, Panel: 3.62×1.77 "
• Digit Height: 0.56
• Dimensions: 4.2"L×3.8"W×1.95"H
• Display Digit Height: 0.56 "
• Display Resolution: 0.1 V
• Function: Voltage
• Material, Casing: Plastic
• Number Of Digits: 3-1/2
• Primary Type: Electronic
• Range, Measurement: ±1.999 to ±300 VDC
• Voltage, Supply: 115 VAC
• Lead Free Status / Rohs Status: RoHS Compliant part
• Other names: Q3058554

APOLLO VOLTMETER INPUTS & CONFIGURATIONS (Applies to both Apollo A.C. & D.C. voltmeters)
SCALING FOR DIRECT READOUT OF OTHER
VARIABLES
display a reading in terms of PSI, RPM, or some other variable. The signal
voltage being measured is normally generated by a transducer which senses the
variable and delivers a linearly proportional output voltage.
connected in tandem (series) to scale (divide) virtually any signal voltage up to
300 V max. down to the basic 0 to 1.999 V input range to get the desired reading.
The multi-tap voltage divider provides coarse ranges of division and the scaling
pot. provides continuous selection of division factors between the taps.
Note: The normal decade division factors (÷10, ÷100, and ÷1000) have been
scaled application, we must first determine the division factor required to
provide the desired display.
USING THE FORMULA:
In many industrial applications, a voltage sensing instrument is required to
The multi-tap divider and the scale adj. pot. of the Apollo Voltmeters can be
adjusted in this schematic to account for parallel connection of the scale pot.
resistance which increases these factors as shown.
In order to determine the jumper wiring configuration of the Apollo for a
VOLTMETER RANGE CHANGE CONNECTIONS
(Polarity Indicated for D.C.)
VT x D.D.P.
D.R.
= D.F.
3
WHERE:
we need to bracket the proper division factor (See “Scaling Connection
Diagrams” below).
EXAMPLE 1: A pressure transducer delivers a 5.5 V signal @ 120.0 PSI
below. Calibrate by adjusting the scaling pot. to get the proper readout at a
known pressure.
EXAMPLE 2: A D.C. tachometer generator delivers 210 V at maximum
C” above. Calibrate by adjusting the scaling pot. to get the proper readout at a
known speed.
Then we connect the divider and pot. to obtain the adjustable division range
maximum.
This division factor falls between 1 and 12, so connect per “Diagram A”
machine speed which is to be indicated as 575 FPM on an Apollo Voltmeter.
This division factor falls between 105 and 1005, so connect per “Diagram
210 V (Max. from tach. gen.) x 1000 (D.P.P.)
0.000
00.00
000.0
0000
D.D.P
D.R.
D.F.
VT
SCALING CONNECTION DIAGRAMS
VT x D.D.P. = 5.5 x 100 = 4.58 D.F.
D.D.P.
575 (Desired Readout)
= Maximum Transducer Output
= Display Decimal Point
= Desired Reading
= Division Factor
=
=
=
=
(Polarity Indicated for D.C.)
D.R.
1
10
100
1000
the features that permit the Apollo Voltmeter
to cover 95% of all in-plant voltage related
measurements. The basic voltmeter range is 0
to 1.999 V. For higher voltage readout, a
multi-tap precision voltage divider can be
connected to extend the range up to 300 V. A
built-in scale adj. pot. extends the capability
of Apollo Voltmeters even further to provide
direct readout from transducers that generate
signal voltage outputs proportional to RPM,
PSI, FPM, etc. Note: When used to readout in
scaled units other than voltage, the front panel
adjustment can be used as a fine trim scaling
adjustment.
The simplified schematic (left) shows all of
The Display Decimal Point
(D.D.P.) is determined by
the desired decimal point
placement in the readout.
120.0
= 365 (D.F.)