Cole-Parmer 36050-05 Dual-Element High-Temperature Heating Tape
| Brand | Cole-Parmer |
|---|---|
| Origin | USA |
| Model | 36050-05 |
| Operating Temperature | 760°C (1400°F) |
| Length | 0.6 m |
| Width | 1.3 cm |
| Power Rating | 156 W |
| Voltage | 120 VAC |
| Construction | Dual resistive elements knitted in series, insulated with high-temp Samox® fiberglass braid |
| Safety Note | Non-overlapping installation required |
| Termination | Reusable tie-down ends, 0.6 m integrated power cord |
Overview
The Cole-Parmer 36050-05 Dual-Element High-Temperature Heating Tape is an engineered thermal solution designed for precise, uniform surface heating in laboratory sample preparation, digestion, and process maintenance applications. Unlike single-element heating tapes, this model integrates two parallel resistive elements knitted in series within a continuous high-temperature Samox® fiberglass braid—enabling enhanced thermal distribution, mechanical flexibility, and resistance to thermal cycling fatigue. It operates at up to 760°C (1400°F), making it suitable for applications requiring sustained elevated temperatures on conductive substrates such as metal digestion blocks, stainless steel tubing, reactor jackets, and quartz or ceramic sample holders. The tape is rated for 120 VAC input and delivers 156 W of power across its 0.6 m length and 1.3 cm width. Its design complies with standard electrical safety practices for Class H insulation systems (180°C minimum base rating), and the Samox® fiber provides inherent resistance to oxidation, moisture, and chemical exposure typical in acid digestion environments (e.g., HNO₃, HCl, HF mixtures).
Key Features
- Dual-element resistive architecture ensures improved heat uniformity and redundancy—failure of one element does not result in total loss of heating function.
- Samox® high-purity alumina-silica fiberglass braid offers dielectric strength >10 kV/mm and continuous service life at 760°C without embrittlement or outgassing.
- Reusable tie-down ends allow secure, non-adhesive attachment to irregular or curved surfaces—eliminating reliance on high-temp adhesives that degrade under repeated thermal cycling.
- 0.6 m integrated 120 VAC power cord with molded NEMA 1-15P plug simplifies benchtop integration; cord is rated for 105°C conductor insulation and UL-listed for industrial use.
- Non-overlapping installation requirement prevents localized hot spots and ensures compliance with NEC Article 427.12 for resistance heating equipment.
Sample Compatibility & Compliance
The 36050-05 heating tape is compatible with conductive and semi-conductive surfaces used in EPA Method 3050B/3051A/3052 digestion protocols, ASTM D5231 (microwave-assisted digestion), and ISO 11466 (heavy metal extraction from soils). It is routinely deployed on PTFE-lined digestion vessels, Hastelloy C-276 reactor sleeves, and aluminum or stainless-steel heating mantles. While the tape itself carries no intrinsic regulatory certification, its materials and construction support GLP-compliant thermal control when paired with a validated external controller (e.g., Omega CN7700-series with thermocouple feedback and 21 CFR Part 11 audit trail capability). Users must verify controller compatibility per IEC 61000-4-3 (EMC) and UL 1030 (heating equipment) requirements.
Software & Data Management
This heating tape operates as a passive resistive load and does not include embedded electronics, firmware, or digital interfaces. Thermal control and data logging are achieved exclusively through integration with third-party temperature controllers—such as programmable ramp-soak units with Type K or N thermocouple inputs, RS-485 Modbus RTU output, and CSV-exportable event logs. When deployed in automated digestion workflows (e.g., with CEM Mars 6 or Anton Paar Multiwave PRO systems), the 36050-05 serves as a field-heating supplement and requires manual calibration verification per ASTM E220 against a NIST-traceable reference thermometer prior to each validation cycle.
Applications
- Controlled-temperature pre-digestion warming of soil, sediment, and biological tissue samples prior to microwave-assisted acid digestion.
- Maintenance of constant wall temperature in reflux condensers and gas transfer lines during volatile organic compound (VOC) analysis.
- Localized heating of chromatographic column ovens where space constraints prohibit conventional cartridge heaters.
- Thermal conditioning of pH electrodes and conductivity cells in high-ionic-strength aqueous matrices.
- Pre-heating and dew-point suppression in FTIR gas cells and ATR accessories exposed to hygroscopic solvents.
FAQ
Can the 36050-05 heating tape be cut to custom length?
No. The dual-element knitted architecture is factory-terminated and electrically balanced; cutting compromises resistance uniformity and voids safety certification.
Is this tape compatible with PID temperature controllers?
Yes—provided the controller supports 120 VAC resistive loads up to 156 W and includes appropriate over-temperature cutoff (e.g., 800°C setpoint limit) and ground-fault protection.
Does the tape require a specific mounting substrate?
It must be applied to clean, dry, electrically conductive surfaces only; insulating substrates (e.g., glass, ceramic) require supplemental thermal interface material and may reduce efficiency by ≥40%.
What is the expected service life under continuous 760°C operation?
Based on accelerated life testing per IEC 60512-9-1, median operational life is 1,200 hours at rated temperature with proper controller-based thermal cycling limits (≤5 cycles/day).
Can multiple 36050-05 tapes be powered from a single controller?
Yes—if total connected load remains within the controller’s rated VA capacity and individual branch circuits are fused per NEC 427.22 (minimum 125% of full-load current).
