Process Technology DQ15D, T-DQ15D Instruction Manual

Specifications .................................................................. 1

General Description ......................................................... 2

Installation .................................................................. 2

Over-temperature Protection. ............................................................ 3

Power and Relay Wiring .................................................................... 4

Set Point & Features .......................................................................... .4

Alarm Feature ...................................................................................... 5

Calibration ............................................................................................. 5

2 Wire RTD Sensor Calibration ........................................................ 6

3 Wire RTD Calibration ...................................................................... 7

Resistance Signal Calibration ........................................................... 8

Voltage Signal Calibration .................................................................. 9

Current Input Calibration ................................................................. 10

Frequency Signal Calibration ......................................................... 10

Thermocouple Calibration .............................................................. 11

4-20mA Process Output (Optional) .............................................. 12

Error Conditions ................................................................................ 13

Error Messages ................................................................................ 13

Configuration (Setup) ....................................................................... 14

Main Menu Summary...................................................................... 15

Sensor Type (U1) ............................................................................. 15

Signal Offset (U2) ............................................................................. 16

Output Signal Offset (U3) ................................................................ 16

Signal Filter Setting (U4) .................................................................. 16

Set Point 1 Dead Band (U5) ........................................................... 16

Set Point 2 Dead Band (U6) ........................................................... 17

Power Save Set Point Dead Band (U7) ...................................... 17

Display Stabilizer (U8) ...................................................................... 17

Set Point Limit (L) .............................................................................. 17

SP2 and U7 Disable (F1) ................................................................ 18

Alarm On/Off Switch (F3) ................................................................ 18

Unit Display Enable (F4) ................................................................. 18

Temperature Units Conversion (F5) ............................................. 18

Current Output Enable (F6) ............................................................ 18

Sensor DIP Switch Settings ........................................................... 19

Electrical Noise and Interference. .................................................. 20

Illustration of a Typical Heater

Installation in a Process Tank ......................................................... 20

7010 Lindsay Drive • Mentor, Ohio 44060 • Phone: [phone]

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COPYRIGHT 2016 Process Technology

DQ15D/ T-DQ15D Instruction Manual

TABLE OF CONTEN

TS

DQ15D / T-DQ15D Digital Temperature

Control

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DQ15D Specifications

Standard Input

2 wire1000 ohm RTD TCR (alpha),

0.00385 ohm/ohm/°C

RTD Self Heating Coefficient:
5° C/w in 0.2 m/s water; 200° C/w in

1 m/s air measurement current, 0.1 to 0.2 mA

Input Range

-40°F (-40°C) to 1000°F (538°C); °F or °C field selectable

Set Point Range

Selectable throughout the input range

Sensor Break or
Short Protection

De-energize control output (No sensor short
protection with Thermocouple sensor)

Accuracy

± 0.25% span, ± 1 digit

Enclosure

Type 12, IP54
Face suitable for panel mounting (#20 ga. through 1/4 thick panels)

Display

4 digit, (1/2" nominal), LED display screen

Control Function

ON/OFF Electromechanical Relays

Control Outputs

SP1 Set Point

(reverse acting) SPDT 20A resistive@240 VAC max
1HP@240 VAC max, 1/2 HP@120VAC

SP2 Set Point

(direct acting) SPDT 2A resistive@240 VAC max
1/10HP@240 VAC max, 1/20 HP@120VAC

ON/OFF Differential

Field adjustable, 1° (F or C) to 99°

Memory

Nonvolatile

Supply Voltage

85 to 265 VAC, 50-60 Hz, 13VA

Operating Conditions

• Indoor Use Only

• 20°F (-7°C) to 140°F (60°C)

• Max Altitude: 3000m

• Max Relative Humidity: 80%

• Pollution Degree 2

• Installation Category II

Input Options

RTD 2 & 3-wire 100 ohm 0.00385 ohm/ohm/ºC or

0.00392 ohm/ohm/ºC

Thermocouples - (types J, K, T, R)

NIST Monograph 175, revision ITS-90 (Obsolete)

Current 4-20mA DC

Voltage (1-10 VDC)

Frequency (0-200 Hz, counts/second),

+/- 6 VDC p to p (up to 30VDC peak with Sw2 ON)

Output Options

4-20 mA DC proportional to the process (display) value.

Maximum impedance 450 Ohms.

Equipment protected throughout by Double Insulation or Reinforced Insulation.

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General Description

The DQ15D digital temperature control is a pro­grammable and microprocessor based device
that operates two relays for temperature control.

Features

The temperature sensor (RTD or thermocouple)
sends a signal to the DQ15D to compare to a value
preset by the user as a Set Point (SP). Set Points
LEDs are SP1 and SP2 on the front panel.

• In heating mode if the sensor signal is lower than the
SP1

Set Point value, DQ15D energizes the

SP1

relay

and its isolated contacts close.

• In cooling mode if the sensor signal is higher than the
SP2 Set Point value, DQ15D energizes SP2 relay and
its isolated contacts close.

• DQ15D has an optional Alarm Condition feature. After
you activate this feature, when the sensor signal ex­ceeds the Alarm Set Point, DQ15D goes into an
alarm condition. In an Alarm Condition, both relays
de-energize and the screen displays a flashing AAA.

• The pow er save, night setback feature permits the use
of a second heating Set Point to

conserve energy

when required.

Installation Procedure

DQ15D is for indoor use only.

1 Unpack and inspect DQ15D

for damage upon re­ceipt. Shipping damage claims must be made
through the freight carrier.

2

Remove rear cover and inspect DQ15D for internal
damage.

3

Remove

the Retaining Collar. Insert a flathead
screwdriver under the collar on alternating sides
while sliding the collar back.

4 Cut a 1/

4DIN

finished opening:

3.625" x 3.625" (92 mm

x 92 mm) in the desired mounting panel location.

5 Select one or more knock-outs from the three (3)

knockouts on the rear

cover

or enclosure side pan­els that offers the most convenient routing for ex­ternal wiring.

Avoid damaging circuitry. Remove rear cover be­fore removing knockouts with a hammer/punch.

Évitez d'endommager les composants du DE20. Enlevez
le panneau arrière avant d'enlever le plastique pour
faire des trous avec un marteau ou un poinçon.

DQ15D Dimensions and Installation

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6 Remove the knockouts before reattaching the rear

cover or inserting the control in the panel.

7 Insert DQ15D through the prepared opening and slide

the retaining collar over the case from the rear of the
panel.

8 Hand tighten the collar, securely tighten the two (2)

collar screws.

9 Install a suitable liquid-tight conduit fitting throug h

the knock- out opening following manufacturer in­structions and install field wiring.

10 Using the Power, Heating and Cooling Relay

Wiring illustration in this chapter, install the required
input and output wires. Use National Electric Code
and local codes for determining wire sizing, insula­tion, terminations, etc.

Wiring

This section provides wiring notes for Power Heat­ing/Cooling relays and Overtemperature Protection.

Overtemperature Protection

Component failure (sensors, relays, temperature con­troller, etc.) in a temperature controlled process can
result in damage to the product, heater over tempera­ture, and the possibility of a fire.

To safeguard against these events, install over tem­perature protection. This will interrupt the heater power
supply in the event of low solution level.

Process Technology heaters include a thermal device
(Protector 1, 2, or 3) on the heater to monitor the heat­er’s surface temperature. When wired properly, these
devices cut the power to the heater in low solution level
conditions. In addition to thermal protection, Process
Technology requires the use of liquid level controls to
monitor the solution level and shut off the heaters prior
to an overtemperature condition occurring.

Ensure you read and adhere to all Over-temperature
protector installation instructions and warnings.

Overtemperature protection is necessary in
any system where a fault condition could pro­duce a fire or any other hazardous condition.
Operation without thorough safety precautions
can result in equipment failure, property dam­age and personal injury.

La protection de surchauffe est nécessaire
dans n'importe quel système où une condition
fausse avec résultat d'une temperature haute
pourrait produire une incendie ou autre condi­tion dangereuse. L'opération sans les précau­tions complètes de sécurité pourrait mener à la
défaillance de l'equipement, l'endommagement
de la propriété, ou des blessures.

Overtemperature Protection Device with Low Level

Cutoff Sample Wiring Diagram

(your wiring may differ)

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Power and Relay Wiring Procedure

Unit is intended for a single power source. To com­plete the wiring procedure, you will need these tools
and materials:

1. #2 Phillips head screwdriver.

2. 1/8” (x-small) straight blade screwdriver.

3. Power supply wire, 18 awg minimum.

4. Relay connection wires (see state and local elec-

trical requirements for proper 65ºC wire gauge).

Referring to the “Power, Heating and Cooling Relay

Wiring (rear view of controller)” illustration above, lo-

cate and identify terminal locations for the power sup­ply voltage, the set point relay, and the appropriate
sensor. Connect wires into their designated terminals
and tighten the retaining screw which will secure the
wire into place.

Extending Wiring

The factory supplied 1000 ohm RTD sensor can be
extended using standard electrical hookup wire (22
awg or larger). The effect of additional 22 awg sensor
wire length on control calibration is approximately 1ºF
for every 65 feet.

Note:

This does not apply to

THERMOCOUPLES.

You

MUST use specific

thermocouple wire when

extend­ing the sensor wir e length. Use of incorrect exten­sion wire can cause hazardous operating

conditions.

Relay Control Set Points

Before operation, you must program Set Points or tem­perature limits.
When DQ15D reaches the Set Point it will energize one
or both relays.

 SP1 Heat Set Point for normal Heating Mode opera-

tion. Controls SP1 relay.



SP2 Cool Set

Point

for normal Cooling Mode opera-

tion. Controls

SP2 relay.



P Power Save Set Point for a second heating Set
Point

lower than SP1 Heat Set Point. Optional; you

must enable Pow er Save

feature. Controls SP1 relay.



A Alarm Set Point to establish an Alarm Condition if
temperature reaches the

Alarm

Set Point (higher
than SP1 Set Point). The screen displays a flashing
AAA in

an Alarm Condition. Optional; you must ena-

ble Alarm feature.

Controls SP1 and SP2 relays.

Note: The units displayed, ºC, ºF, Hz, volts, mA or
ohms are established during the setup of the con­troller.

View/Change Set Points

The screen normally displays the actual process
temperature.

SP1 - Heat Set Point

1 To view the SP1 SET POINT value, press once

and release. For seven seconds, the letter H and a
decimal point followed by the numeric SP1 value
display. (After seven seconds the display returns
to normal.)

2 To alter the Set Point value, press SET while the

Set Point value displays (value will flash).

3 Once the value flashes,

use

or to change

the value.

4

Within 5

seconds

after changing the value, press

SET again to lock the new value into memory.

Note: If the “SET” key is not pressed within 5 sec­onds, the new

value

will be lo

st and the set

poin

t value

will revert to its previous setting.

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View/Change Set Points (Continued)

SP2 - Cool Set Point
1 To view the SP2 SET POINT value, press twice

and release. For seven seconds, the letter C and a
decimal point followed by the numeric SP2 value
display. (After seven seconds the display returns
to normal.)

2 To alter the Set Point value, press SET while the

Set Point value still displays (value will flash).

3 Once the value flashes, use or to change the

value.

4 Within 5 seconds after changing the value, press

SET once more to lock the new value into
memory.

P – Power Save Set Point
1 To turn on the Power-Save feature, do one of the

following tasks, never do both:

• either press all three keys ( , SET, and )
simultaneously, or

• install an external switch to close contacts #3
and #4 on the rear terminal strip.
When the control is operating in Power-Save
mode, the display will alternately change be­tween the process value and three dashes ---.

2 Return to normal SP1 operation with one of the

following tasks:

• either press all three keys ( , SET, and )
simultaneously, or

• switch OFF the remote switch wired to terminals

#3 and #4.

3 To view the P SET POINT value, press once

and release. The control will display the letter P
and a decimal point followed by the numeric P
SET POINT value.

4 To change the Set Point value, press SET while

the P SET POINT value displays (value will flash).

5 Once the value flashes, press or to change

the value.

6 Press SET once to lock the new value into

memory.

Alarm Set Point

Note: This is not a safety device.

1 Enable the Alarm feature. See Configuration

(Setup), F3 Alarm On/ Off Switch for instructions.

2 Press twice and release. The letter A, followed

by a decimal point and the Alarm Set Point value
displays. (After a few seconds the screen returns
to normal.)

3 To change the ALARM SET POINT, press SET

while the alarm Set Point value still displays (value
will flash).

4 When it flashes, use or to change the value,

and press SET to lock the new value into memory.

Calibration

This section includes calibration procedures for 2 & 3
wire RTDs, Resistance, Voltage, Current Input, Fre­quency, and Thermocouples.

Calibration procedures require the removal of
the rear cover of the

control.

It also requires that
power is ON, exposing the technician to poten­tially lethal

voltages.

Exercise

EXTREME

CARE

and

wear tested electrician’s gloves whenever

power is on.

Les procédures de calibration nécessitent
l'enlèvement du panneau arrière du contrôle.
Ça exige aussi que le courant électrique est
allumé ce qui expose le technicien à des ten­sions potentiellement létales. Utilisez toujours
un soin extrême et portez des gants certifiés
d'électricien quand le courrant est allumé.