Decimal Point Selection; Commonly Asked Questions - Dart DM4000 Manual De Instrucciones

(continued)
Example: Use Programming Formula for the DM4005 - A conveyor oven needs to cook a pizza in 8 minutes and 31 seconds,
and we have determined the motor speed is 1000 RPM. A PU-2E with an Ip of 1 is being used.
Therefore MS = [1000 x ( 8 x 60 +31 ) ] = 1000 x 511 = 142.
STEP 4
Establish the "M" (multiplier trimpot setting) and "S" (switch setting) values. Keep "S" as large as possible, but
less that 255.
Example: If MS = 1581, then our best choice for "S" would be 158 (it is as large as it can be without being equal to or greater
than 255). This makes the Multiplier (M) = 10.
Examples: MS = 12, 235. Therefore S = 122. M = 100.
MS = 123.85.
STEP 5
Set the Timer Switches. The value of the switches that are to be activated must add up to the value of "S" (see
value chart).
Examples: If S (total) = 15, then S4 (8) + S3 (4) + S2 (2) + S1 (1) = 15.
If S (total) = 226 then S8 (128) + S7 (64) + S6 (32) + S2 (2) = 226.
S8 S7 S6 S5 S4 S3 S2 S1
FRONT VIEW
ACTIVATE SWITCH BY TURNING OFF
STEP 6
Set the Multiplier trimpot using the "M" value determined in STEPS 3, 4 and 5.
All decimal points are illuminated and are covered with black adhesive backed dots. If a decimal point is needed, remove dot to
illuminate the desired decimal point.
Q. Can the DM4000 Series be used above 9,999 RPM?
A. Yes, there will be only a 4 digit display. Note: The bearings of the Dart PU-E Pick-up are not rated above 5,000 RPM.
Q. I want a stable reading, but the last digit fluctuates. What should be done?
A. The reading can be multiplied by ten using the "M" adjustment with the last digit covered.
3600
Therefore S = 124. M = 1.
SWITCHES ARE ACTIVE WHEN OFF !!!
ON
x 1
M = 1

DECIMAL POINT SELECTION

COMMONLY ASKED QUESTIONS

3600
" S " VALUE CHART
S1 = 1 S2 = 2
S5 = 16 S6 = 32
EXAMPLE: SWITCHES 3, 4, AND 7 HAVE BEEN ACTIVATED
SINCE S3 = 4, S4 = 8, S7 = 64
THEREFORE: 4 + 8 + 64 = 76 = S
x 10
M = 10 M = 100
5
S3 = 4 S4 = 8
S7 = 64 S8 = 128
x 100
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