itherm KTM-448 Digital Preset Timer Instruction Manual

itherm KTM-448 Digital Preset Timer

Product Information

The Digital Preset Timer is available in multiple models: KTM-448, KTM-668, KTM-778, KTM-888, and KTM-998. Each model has different dimensions and specifications.

• Display: Dual 4-Digit 7 Segment LED (RED)
• Status Indication: Time unit (Hrs./Min./Sec.), Relay status (RL1/RL2)
• Auto Reset / Hold Time
• Time settings: Through Keyboard
• Control Inputs: Start Input, Reset
• Reset time: < 100 ms
• Timing Accuracy: 0.05% of Full Scale
• Repeat Accuracy: 0.01%
• Outputs: 5 Amp @ 230VAC Relay (1C/O) x 2, 12 VDC @ 30mA for SSR Drive (by order)
• Reset: Front switch (Programmable), Remote Reset (via rear terminals), On power interruption (Programmable)
• Supply: 90 to 270 VAC
• Mounting: Panel
• Housing Operating temp.: -40°C to +50°C
• Humidity: 95% Rh (Non Condensing)

Product Usage Instructions

1. Prepare the cut-out with proper dimensions as shown in the figure.
2. Remove the clamp from the controller.
3. Push the controller through the panel cut-out and secure it in place by tightening the side clamp.
4. Connect the terminals according to the terminal connections diagram.
5. Configure the parameters based on your requirements. Parameters include mode (On delay/Off delay/CY1/CY2/CY3), range 1 & 2 (9.99 Sec. to 999 Hrs.), count direction (Up/Down), timer start, timer function (Auto Reset/Latched output), front reset (Enable/Disable), gate input (Enable/Disable), memory backup (Enable/Disable), and output 2 function.
6. Ensure the Timer is within the specified ambient temperature and relative humidity limits.
7. Wire the Timer as per the wiring diagram and comply with local electrical regulations.

IMPORTANT: Follow all safety instructions provided in the manual to ensure the safety of the operator and the unit.

SPECIFICATIONS

• Display : Dual 4- Digit 7 Segment LED (RED)

Model no.	KTM-448	KTM-668	KTM-778	KTM-888	KTM-998
UPPER	0.28”	0.39”	0.56”	0.39”	0.56”
LOWER	0.28”	0.39”	0.39”	0.39”	0.56”

• Status Indication : Time unit ( Hrs. / Min. /Sec. ) Relay status (RL1/RL2) Auto Reset / Hold Time
• Time settings : Through Keyboard
• Control Inputs  : a] Start Input b] Reset
• Reset time : < 100 ms
• Timing Accuracy : 0.05% of Full Scale
• Repeat Accuracy : 0.01%
• Outputs :  5 Amp @ 230VAC Relay (1C/O) x 2 12 VDC @ 30mA for SSR Drive (by order)
• Reset :
  • Front switch (Programmable)
  • Remote Reset (via rear terminals)
  • On power interruption (Programmable)
• Supply : 90 to 270 VAC
• Mounting : Panel
• Housing : ABS Plaostic
• Operating temp. : 0 ~ 50 C
• Humidity : 95% Rh (Non Condensing).

Configurable Parameters

• Mode : On delay/Off delay/CY1/CY2/CY3
• Range 1 & 2: 9.99 Sec. to 999 Hrs. ( Programmable )
• Count direction: Up / Down
• Timer Start : Refer Programming
• Timer Function : Auto Reset / Latched output
• Front Reset: Enable / Disable
• Gate Input: Enable / Disable
• Memory Backup: Enable / Disable
• Output 2 Function : Refer Programming

OVER ALL DIMENSIONS & PANEL CUT OUT (IN MM)

MODEL :- KTM-448/KTM-668/KTM-778/ KTM-888/KTM-998

Dim \Model	A	B	C	D	E	F	G	H
KTM-448	48	48	8	75	43	44	44	9
KTM-778	72	72	10	65	66	68	68	9
KTM-998	96	96	10	45	89	92	92	9
KTM-888	48	96	10	45	43	44	92	9
KTM-668	96	48	10	45	89	92	44	9

INSTALLATION GUIDELINES

1. Prepare the cut-out with proper dimension as shown in figure.
2. Remove clamp from controller
3. Push the controller through panel cut-out and secure the controller in its place by tightening the side clamp.

TERMINAL CONNECTIONS

TYPICAL APPLICATION :

SAFETY INSTRUCTION

All safety related instruction appearing in this manual must be followed to ensure safety of the operator as well as the unit..

MECHANICAL

• Ambient temperature and relative humidity surrounding the Timer must not exceed the maximum specified limits..
• The Timer in its installed state must be protected against excessive electrostatic or electromagnetic interferences.

ELECTRICAL

• The Timer must be wired as per wiring diagram & it must comply with local electrical regulation.
• The Electrical noise generated by switching inductive loads might create momentary Fluctuation in display, latch up, data loss or permanent damage to the instrument. To

PROGRAMMING

USER LIST : To access the user list, press & release SET key once.

PARAMETER	LOWER DISPLAY	UPPER DISPLAY	RANGE	DESCRIPTION	DEFAULT
HOLD TIME			0 – 99.9 S	HOLD TIME : Prompted only if selected mode is CY3 (Cyclic with Hold). Sets the HOLD time between motor Forward & Reverse.	5.0
SET TIME 1			0 – 999	SET TIME 1 : Set time for On delay & Off delay modes. On time for CY1 & CY2 modes. Forward time for CY3 mode.	10.0
SET TIME 2			0 – 999	SET TIME 2 : Prompted only if selected timer mode is CY1, CY2 or CY3. It sets Off time for CY1 & CY2 modes& reverse time for CY3 mode.	10.0
NUMBER OF CYCLES			0 – 999	NUMBER OF CYCLES : Prompted only if selected timer mode is CY1, CY2. It sets the number of cycles after which both the Relays will be OFF.	0
EOC TIME			0 – 999	EOC TIME : OP2 function is set to EOC. This parameter sets the End of cycle time ( Fixed in seconds)	5.0
TOTAL TIME			0 – 999	TOTAL TIME : Available for CY3 mode only. In This mode when Total time is over (Programmed in Min. only); Both relays will be off.	0

CONFIGURATION LIST

Function / Timing Waveforms

Mfgd by: Innovative Instruments & Controls LLP
338, New Sonal Link Service Industrial Premises Co-op Society Ltd, Building No.2, Link Road, Malad (W), Mumbai – 400064.
Tel: 022-66939916/17/18;
E-mail : sales@itherm.co.in
Website : www.itherm.co.in

Documents / Resources

itherm KTM-448 Digital Preset Timer [pdf] Instruction Manual KTM-448, KTM-668, KTM-778, KTM-888, KTM-998, KTM-448 Digital Preset Timer, KTM-448, Digital Preset Timer, Preset Timer, Timer

References

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