H. Kuhnke Ltd, Romsey, UK
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The Timer and Counter Company

Pneumatic Timers > Ellis Kuhnke Surface & Panel Mounted Pneumatic Timers

PT & PMT series Ellis Kuhnke Pneumatic Timers

The Ellis Kuhnke range of pneumatic timers was developed specifically for the US markets, and remains a popular product within the oil industry. The PT is unique in that no air bleed is used to achieve the timing function. The off-delay version is the only product to offer a genuine time delay after removal of compressed air signal. The Timer & Counter Company can supply all Ellis Kuhnke timers worldwide. There are 2 ranges, and each model is built to include the customer's selection of standard features.

The PT Series includes panel and surface mount versions, 9 different time ranges from 0.1 - 1.0 seconds to 6 - 60 minutes. PT series are either on delay (normally closed) or off delay (normally open). PT series operate at low pressures, 5 psi (0.3 bar), up to 140 psi (9.5 bar) with 1/8 NPTF ports.

Data Specifications - PT
Operating Pressure & Temp	0.4 - 9.5 bar (5 - 140 PSI) -30 ... + 70°C
Control Pressure	0.4 - 9.5 bar (5 - 140 PSI)
Air Quality	Oil Free & Dry 5micron filtered
Connections	1/8 NPTF
Time Setting	Infinite Through Time Range
Method of Setting	Rotary Knob
Accuracy	±10% end scale value ±10% resetting
Air Consumption	None
Reset Time	60ms at 3.5bar (50 PSI)

The PMT Series have a clock face with a dial indicator showing set time. It is only available as on delay (normally closed) with 6 time ranges, all below 180 seconds. Available with 10 - 32, 1/8 NPTF ports via a bottom subplate. These are generally supplied as replacement parts. For new applications the Kuhnke 54 series pneumatic timer offers great accuracy.

Data Specifications - PMT
Operating Pressure & Temp	1 - 7 bar (15 - 100 PSI) 0 ... + 65°C
Control Pressure	(A) 1 - 7 bar (15 - 100 PSI) (B)2 - 7 bar (30 - 100 PSI)
Air Quality	Oil Free & Dry 5micron filtered
Connections	1/8 NPTF
Time Setting	Infinite Through Time Range
Method of Setting	Rotary Knob
Accuracy	±10% end scale value ±3% resetting
Air Consumption	0.1cfm @ 100 PSI (3.4l/min @ 7 bar)
Reset Time	60ms at 3.5bar (50 PSI)

Part Numbers
PT41*	PT = Model; 3 or 4 = on/off delay; 1 or 5 = surface/panel mount; * = time range: A = 0.1 - 1.0 seconds; B = 0.5 - 5.0 seconds; C = 1.5 - 15.0 seconds; D = 5.0 - 50.0 seconds; E = 20.0 - 200.0 seconds; F = 1.0 - 10.0 minutes; H = 3.0 - 30.0 minutes; I = 6.0 - 60.0 minutes; K = 1.0 - 300.0 seconds
PMT1*XYZ	PMT = Model; 1 = on delay; * = Time range: D=0.3-3.0 sec; E =1.0-10.0 sec; F=3.0-30.0 sec; G=6.0-60.0 sec; H=12.0-120.0 sec; J= 18.0-180.0 sec X = Mounting: 1 = Subplate Mount; 2 = Vertical panel mount; 3 = Horizontal panel mount Y = Pilot pressure actuation range: A = Low Pressure(15-100PSI); B = High Pressure(30-100 PSI) Z = Manifold position: 1 = Top side; 2 = Right side; 3 = Bottom side; 4 = Left side

PDF Datasheets
PT 31 On-Delay Surface Mount	82kb
PT 35 On-Delay Panel Mount	76kb
PT 41 Off-Delay Surface Mount	79kb
PT 45 Off-Delay Panel Mount	77kb
PMT On-Delay - Subplate Mount	104kb
PMT On-Delay - Vertical Panel Mount	111kb
PMT On-Delay - Horizontal Panel Mount	110kb

Features

• US standards
• 1/8 NPTF ports
• On delay versions
• Off delay versions
• Panel mount versions
• Surface mount versions
• 5 - 140 psi options
• Many time ranges
• Easily customised
• No air bleed on PT versions

For a full list of options and explanation please contact The Timer & Counter Company.