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Summary of Contents for PMK PHT 312-RO
- Page 1 PHT 312-RO Environmental Probe Instruction Manual...
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Page 2: Warranty
(including damages for loss of profits, loss of business, loss of use or data, interruption of business and the like), even if PMK GmbH has been advised of the possibility of such damages arising from any defect or error in this manual or product. -
Page 3: Declaration Of Conformity
Your help and efforts are required to protect and keep clean our environment. Therefore return this electronic product at the end of its life either to the Service Department of PMK Mess- und Kommunikationstechnik GmbH or take care of separate WEEE collection and professional WEEE treatment yourself. - Page 4 IEC Measurement Categories PHT312-RO Definitions and Examples (Clause 6.5.2) Measurement Category I Definition: Measurement category I is for measurements performed on circuits not directly connected to a mains supply. Examples: Measurements in circuits not derived from a mains supply and specially protected ( internal ) circuits derived from a mains supply.
- Page 5 IEC Pollution Degrees PHT312-RO Definitions (Clause 3.5.6 ) Pollution Degree 1 No POLLUTION or only dry, non conductive POLLUTION. NOTE: The POLLUTION has no influence. Pollution Degree 2 Only- non conductive POLLUTION. Occasionally, however, a temporary conductivity caused by condensation must be accepted. Pollution Degree 3 Conductive POLLUTION occurs or dry, non-conductive POLLUTION occurs which becomes conductive due to condensation which is to be expected.
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Page 6: Grounding The Probe
Grounding the Probe PHT312-RO Connect the probe to the oscilloscope input and connect the ground lead to earth ground before performing any measurements. Note that all accessible metal parts are connected to the BNC instrument connector (GND), except for the probe tip and the BNC centre-conductor. The PHT312-RO is designed for ground-referenced measurements only. -
Page 7: Input Impedance
Specifications PHT312-RO Electrical Characteristics Input Resistance (System) 4.4 MΩ (± 1 %) Input Capacitance (System) 20 pF Compensation Range 10 pF - 25 pF Input Coupling of the Measuring Instrument 1 MΩ AC / DC Input Impedance Typical Input Impedance PHT 312 100M Note that the input impedance of 100k... -
Page 8: Safety Information
Safety Information PHT312-RO To avoid personal injury and to prevent fire or damage to this product or products connected to it, review and comply with the following safety precautions. Be aware that if you use this probe assembly in a manner not specified the protection this product provides may be impaired. -
Page 9: Adjustment Procedures
Adjustment Procedures PHT312-RO The probe can be adjusted for low frequency (LF) compensation and for high frequency (HF) compensation and DC dividing ratio. DC Adjustment In order to provide highest accuracy over the voltage range this probes dividing ratio is factory adjusted using 200 VDC source and a measuring device with a precision input impedance of 1MΩ... - Page 10 Handling PHT312-RO Handle with care especially when fitted with the extra thin and sharp spring contact tip to avoid any injury. Note that the probe cable is a sensitive part of the probe. Do not damage through excessive bending or pulling. Avoid mechanical shock to this product in general to guarantee accurate performance and protection.
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Page 11: Probe Accessories
Probe Accessories PHT312-RO 891-005-803 891-005-011 5x Spring Tip 0.8 mm 5x Solid Tip 0.8 mm 890-400-022 HT-Ground Lead 10 cm 018-291-102 018-292-524 Ground Blade 5.0 HT-Insulating Tube 890-400-021 890-520-712 HT-Ground Lead 10 cm 890-292-006 HT-Dual Lead Adapter 018-210-003 to 4 mm Banana Plug PCB Adapter 5.0-L to 0.64 mm Sockets BNC Adapter 5.0-L... -
Page 12: Scope Of Delivery
Scope of Delivery PHT312-RO The following items are included in the scope of delivery. Please check the delivery for completeness. If any item is missing, send a message to our service department and we will send you this item immediately. Item Adjustment Tool T BNC Adapter 5,0-L...
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